230 lines
10 KiB
Java
Executable File
230 lines
10 KiB
Java
Executable File
/******************************************************************************
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* Copyright (c) 2002 - 2006 IBM Corporation.
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* All rights reserved. This program and the accompanying materials
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* are made available under the terms of the Eclipse Public License v1.0
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* which accompanies this distribution, and is available at
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* http://www.eclipse.org/legal/epl-v10.html
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*
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* Contributors:
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* IBM Corporation - initial API and implementation
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*****************************************************************************/
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package com.ibm.wala.cast.js.test;
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import java.io.File;
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import java.io.IOException;
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import java.net.JarURLConnection;
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import java.net.URL;
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import java.util.Set;
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import junit.framework.Assert;
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import com.ibm.wala.cast.ir.ssa.AstIRFactory;
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import com.ibm.wala.cast.ir.translator.TranslatorToCAst.Error;
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import com.ibm.wala.cast.js.html.WebPageLoaderFactory;
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import com.ibm.wala.cast.js.html.WebUtil;
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import com.ibm.wala.cast.js.ipa.callgraph.JSAnalysisOptions;
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import com.ibm.wala.cast.js.ipa.callgraph.JSCFABuilder;
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import com.ibm.wala.cast.js.ipa.callgraph.JSCallGraphUtil;
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import com.ibm.wala.cast.js.ipa.callgraph.JSZeroOrOneXCFABuilder;
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import com.ibm.wala.cast.js.ipa.callgraph.PropertyNameContextSelector;
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import com.ibm.wala.cast.js.ipa.callgraph.correlations.extraction.CorrelatedPairExtractorFactory;
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import com.ibm.wala.cast.js.loader.JavaScriptLoader;
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import com.ibm.wala.cast.js.loader.JavaScriptLoaderFactory;
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import com.ibm.wala.cast.loader.CAstAbstractLoader;
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import com.ibm.wala.cast.tree.rewrite.CAstRewriterFactory;
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import com.ibm.wala.classLoader.IMethod;
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import com.ibm.wala.classLoader.SourceModule;
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import com.ibm.wala.classLoader.SourceURLModule;
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import com.ibm.wala.ipa.callgraph.AnalysisCache;
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import com.ibm.wala.ipa.callgraph.AnalysisScope;
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import com.ibm.wala.ipa.callgraph.CallGraph;
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import com.ibm.wala.ipa.callgraph.Entrypoint;
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import com.ibm.wala.ipa.callgraph.propagation.PropagationCallGraphBuilder;
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import com.ibm.wala.ipa.callgraph.propagation.cfa.ZeroXInstanceKeys;
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import com.ibm.wala.ipa.cha.ClassHierarchyException;
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import com.ibm.wala.ipa.cha.IClassHierarchy;
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import com.ibm.wala.ssa.IRFactory;
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import com.ibm.wala.util.CancelException;
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import com.ibm.wala.util.WalaException;
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import com.ibm.wala.util.collections.HashSetFactory;
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/**
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* TODO this class is a mess. rewrite.
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*/
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public class JSCallGraphBuilderUtil extends com.ibm.wala.cast.js.ipa.callgraph.JSCallGraphUtil {
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public static enum CGBuilderType {
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ZERO_ONE_CFA(false, true, true),
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ZERO_ONE_CFA_NO_CALL_APPLY(false, false, true),
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ONE_CFA(true, true, true);
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private final boolean useOneCFA;
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private final boolean handleCallApply;
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private final boolean extractCorrelatedPairs;
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private CGBuilderType(boolean useOneCFA, boolean handleCallApply, boolean extractCorrelatedPairs) {
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this.useOneCFA = useOneCFA;
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this.handleCallApply = handleCallApply;
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this.extractCorrelatedPairs = extractCorrelatedPairs;
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}
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public boolean useOneCFA() {
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return useOneCFA;
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}
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public boolean handleCallApply() {
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return handleCallApply;
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}
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public boolean extractCorrelatedPairs() {
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return extractCorrelatedPairs;
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}
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}
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/**
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* create a CG builder for script. Note that the script at dir/name is loaded via the classloader, not from the filesystem.
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*/
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public static JSCFABuilder makeScriptCGBuilder(String dir, String name, CGBuilderType builderType) throws IOException, WalaException {
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URL script = getURLforFile(dir, name);
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CAstRewriterFactory preprocessor = builderType.extractCorrelatedPairs ? new CorrelatedPairExtractorFactory(translatorFactory, script) : null;
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JavaScriptLoaderFactory loaders = JSCallGraphUtil.makeLoaders(preprocessor);
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AnalysisScope scope = makeScriptScope(script, dir, name, loaders);
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return makeCG(loaders, scope, builderType, AstIRFactory.makeDefaultFactory());
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}
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public static URL getURLforFile(String dir, String name) {
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URL script = JSCallGraphBuilderUtil.class.getClassLoader().getResource(dir + File.separator + name);
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if (script == null) {
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script = JSCallGraphBuilderUtil.class.getClassLoader().getResource(dir + "/" + name);
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}
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assert script != null : "cannot find " + dir + " and " + name;
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return script;
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}
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static AnalysisScope makeScriptScope(String dir, String name, JavaScriptLoaderFactory loaders) throws IOException {
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return makeScriptScope(getURLforFile(dir, name), dir, name, loaders);
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}
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public static SourceModule getPrologueFile(final String name) {
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return new SourceURLModule(JSCallGraphBuilderUtil.class.getClassLoader().getResource(name)) {
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@Override
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public String getName() {
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return name;
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}
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};
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}
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static AnalysisScope makeScriptScope(URL script, String dir, String name, JavaScriptLoaderFactory loaders) throws IOException {
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return makeScope(
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new SourceModule[] {
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(script.openConnection() instanceof JarURLConnection)? new SourceURLModule(script): makeSourceModule(script, dir, name),
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getPrologueFile("prologue.js")
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}, loaders, JavaScriptLoader.JS);
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}
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public static JSCFABuilder makeScriptCGBuilder(String dir, String name) throws IOException, WalaException {
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return makeScriptCGBuilder(dir, name, CGBuilderType.ZERO_ONE_CFA);
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}
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public static CallGraph makeScriptCG(String dir, String name) throws IOException, IllegalArgumentException, CancelException, WalaException {
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return makeScriptCG(dir, name, CGBuilderType.ZERO_ONE_CFA);
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}
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public static CallGraph makeScriptCG(String dir, String name, CGBuilderType builderType) throws IOException,
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IllegalArgumentException, CancelException, WalaException {
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PropagationCallGraphBuilder b = makeScriptCGBuilder(dir, name, builderType);
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CallGraph CG = b.makeCallGraph(b.getOptions());
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// dumpCG(b.getPointerAnalysis(), CG);
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return CG;
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}
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public static CallGraph makeScriptCG(SourceModule[] scripts, CGBuilderType builderType, IRFactory<IMethod> irFactory) throws IOException, IllegalArgumentException,
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CancelException, WalaException {
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CAstRewriterFactory preprocessor = builderType.extractCorrelatedPairs ? new CorrelatedPairExtractorFactory(translatorFactory, scripts) : null;
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PropagationCallGraphBuilder b = makeCGBuilder(makeLoaders(preprocessor), scripts, builderType, irFactory);
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CallGraph CG = b.makeCallGraph(b.getOptions());
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// dumpCG(b.getPointerAnalysis(), CG);
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return CG;
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}
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public static JSCFABuilder makeHTMLCGBuilder(URL url) throws IOException, WalaException {
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return makeHTMLCGBuilder(url, CGBuilderType.ZERO_ONE_CFA);
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}
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public static JSCFABuilder makeHTMLCGBuilder(URL url, CGBuilderType builderType) throws IOException, WalaException {
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IRFactory<IMethod> irFactory = AstIRFactory.makeDefaultFactory();
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CAstRewriterFactory preprocessor = builderType.extractCorrelatedPairs ? new CorrelatedPairExtractorFactory(translatorFactory, url) : null;
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JavaScriptLoaderFactory loaders = new WebPageLoaderFactory(translatorFactory, preprocessor);
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SourceModule[] scriptsArray = makeHtmlScope(url, loaders);
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JSCFABuilder builder = makeCGBuilder(loaders, scriptsArray, builderType, irFactory);
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if(builderType.extractCorrelatedPairs)
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builder.setContextSelector(new PropertyNameContextSelector(builder.getAnalysisCache(), 2, builder.getContextSelector()));
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builder.setBaseURL(url);
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return builder;
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}
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public static SourceModule[] makeHtmlScope(URL url, JavaScriptLoaderFactory loaders) {
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Set<SourceModule> scripts = HashSetFactory.make();
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JavaScriptLoader.addBootstrapFile(WebUtil.preamble);
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scripts.add(getPrologueFile("prologue.js"));
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scripts.add(getPrologueFile("preamble.js"));
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try {
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scripts.addAll(WebUtil.extractScriptFromHTML(url).fst);
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} catch (Error e) {
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SourceModule dummy = new SourceURLModule(url);
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scripts.add(dummy);
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((CAstAbstractLoader)loaders.getTheLoader()).addMessage(dummy, e.warning);
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}
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SourceModule[] scriptsArray = scripts.toArray(new SourceModule[ scripts.size() ]);
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return scriptsArray;
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}
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public static CallGraph makeHTMLCG(URL url) throws IOException, IllegalArgumentException, CancelException, WalaException {
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PropagationCallGraphBuilder b = makeHTMLCGBuilder(url);
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CallGraph CG = b.makeCallGraph(b.getOptions());
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dumpCG(b.getPointerAnalysis(), CG);
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return CG;
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}
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public static CallGraph makeHTMLCG(URL url, CGBuilderType builderType) throws IOException, IllegalArgumentException,
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CancelException, WalaException {
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PropagationCallGraphBuilder b = makeHTMLCGBuilder(url, builderType);
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CallGraph CG = b.makeCallGraph(b.getOptions());
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return CG;
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}
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public static JSCFABuilder makeCGBuilder(JavaScriptLoaderFactory loaders, SourceModule[] scripts, CGBuilderType builderType, IRFactory<IMethod> irFactory) throws IOException, WalaException {
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AnalysisScope scope = makeScope(scripts, loaders, JavaScriptLoader.JS);
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return makeCG(loaders, scope, builderType, irFactory);
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}
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protected static JSCFABuilder makeCG(JavaScriptLoaderFactory loaders, AnalysisScope scope, CGBuilderType builderType, IRFactory<IMethod> irFactory) throws IOException, WalaException {
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try {
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IClassHierarchy cha = makeHierarchy(scope, loaders);
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com.ibm.wala.cast.js.util.Util.checkForFrontEndErrors(cha);
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Iterable<Entrypoint> roots = makeScriptRoots(cha);
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JSAnalysisOptions options = makeOptions(scope, cha, roots);
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options.setHandleCallApply(builderType.handleCallApply());
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AnalysisCache cache = makeCache(irFactory);
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JSCFABuilder builder = new JSZeroOrOneXCFABuilder(cha, options, cache, null, null, ZeroXInstanceKeys.ALLOCATIONS,
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builderType.useOneCFA());
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if(builderType.extractCorrelatedPairs())
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builder.setContextSelector(new PropertyNameContextSelector(builder.getAnalysisCache(), 2, builder.getContextSelector()));
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return builder;
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} catch (ClassHierarchyException e) {
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Assert.assertTrue("internal error building class hierarchy", false);
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return null;
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}
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}
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}
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