2014-10-02 01:32:36 +00:00
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/*
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* 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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* This file is a derivative of code released under the terms listed below.
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*
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*/
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2013-01-31 15:54:35 +00:00
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/*
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*
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* Copyright (c) 2009-2012,
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*
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* Adam Fuchs <afuchs@cs.umd.edu>
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* Avik Chaudhuri <avik@cs.umd.edu>
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*
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3. The names of the contributors may not be used to endorse or promote
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* products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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*
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*/
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package org.scandroid.prefixtransfer;
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import com.ibm.wala.classLoader.CallSiteReference;
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import com.ibm.wala.classLoader.IMethod;
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import com.ibm.wala.ipa.callgraph.AnalysisOptions;
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import com.ibm.wala.ipa.callgraph.CGNode;
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import com.ibm.wala.ipa.callgraph.Context;
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import com.ibm.wala.ipa.callgraph.impl.DefaultContextSelector;
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import com.ibm.wala.ipa.callgraph.impl.Everywhere;
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import com.ibm.wala.ipa.callgraph.propagation.InstanceKey;
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import com.ibm.wala.ipa.callgraph.propagation.NormalAllocationInNode;
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import com.ibm.wala.ipa.callgraph.propagation.ReceiverInstanceContext;
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import com.ibm.wala.ipa.callgraph.propagation.cfa.CallerSiteContext;
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import com.ibm.wala.ipa.callgraph.propagation.cfa.CallerSiteContextPair;
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import com.ibm.wala.ipa.cha.IClassHierarchy;
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import com.ibm.wala.types.ClassLoaderReference;
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import com.ibm.wala.util.intset.IntSet;
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public class UriPrefixContextSelector extends DefaultContextSelector {
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//private final ContextSelector delegate;
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public UriPrefixContextSelector(AnalysisOptions options, IClassHierarchy cha) {
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super(options, cha);
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}
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/* TODO: fix receivers[0] references. */
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@Override
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public Context getCalleeTarget(CGNode caller, CallSiteReference site,
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IMethod callee, InstanceKey[] receivers) {
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if(callee.getSignature().equals("java.lang.StringBuilder.toString()Ljava/lang/String;") ||
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callee.getSignature().equals("java.lang.StringBuilder.append(Ljava/lang/String;)Ljava/lang/StringBuilder;") ||
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callee.getSignature().equals("java.lang.String.valueOf(Ljava/lang/Object;)Ljava/lang/String;") ||
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callee.getSignature().equals("java.lang.String.toString()Ljava/lang/String;") ||
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callee.getSignature().equals("android.net.Uri.parse(Ljava/lang/String;)Landroid/net/Uri;") ||
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callee.getSignature().equals("android.net.Uri.withAppendedPath(Landroid/net/Uri;Ljava/lang/String;)Landroid/net/Uri;") ||
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// callee.getSignature().equals("android.net.Uri$StringUri.buildUpon()Landroid/net/Uri$Builder;") ||
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// callee.getSignature().equals("android.net.Uri$OpaqueUri.buildUpon()Landroid/net/Uri$Builder;") ||
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callee.getSignature().equals("android.net.Uri$Builder.build()Landroid/net/Uri;")
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)
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{
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// System.out.println("Adding context to "+callee.getSignature());
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// for (int i = 0; i < receivers.length; i++)
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// System.out.println("\t#"+i+" "+receivers[i]);
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if(receivers[0] instanceof NormalAllocationInNode)
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{
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// System.out.println("\t\tNormalAllocationInNode "+callee.getSignature());
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if(((NormalAllocationInNode)receivers[0]).getSite().getDeclaredType().getClassLoader().equals(ClassLoaderReference.Application))
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// create a context based on the site and the receiver
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return new CallerSiteContextPair(caller,site,new ReceiverInstanceContext(receivers[0]));
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// if (callee.getSignature().equals("android.net.Uri$StringUri.buildUpon()Landroid/net/Uri$Builder;") ||
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// callee.getSignature().equals("android.net.Uri$OpaqueUri.buildUpon()Landroid/net/Uri$Builder;") ||
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// callee.getSignature().equals("android.net.Uri$Builder.build()Landroid/net/Uri;"))
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// return new CallerSiteContextPair(caller,site,new ReceiverInstanceContext(receivers[0]));
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if (callee.getSignature().equals("android.net.Uri$Builder.build()Landroid/net/Uri;"))
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return new CallerSiteContextPair(caller,site,new ReceiverInstanceContext(receivers[0]));
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//return new CallerSiteContext(caller,site);
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}
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else if(callee.getSignature().equals("java.lang.String.valueOf(Ljava/lang/Object;)Ljava/lang/String;") ||
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callee.getSignature().equals("java.lang.String.toString()Ljava/lang/String;") ||
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callee.getSignature().equals("android.net.Uri.parse(Ljava/lang/String;)Landroid/net/Uri;") ||
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callee.getSignature().equals("android.net.Uri.withAppendedPath(Landroid/net/Uri;Ljava/lang/String;)Landroid/net/Uri;")
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)
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{
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return new CallerSiteContext(caller,site);
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}
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}
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else //if(callee.getSignature().contains("value"))
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{
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// System.out.println("Found signature: "+callee.getSignature());
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}
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if(!caller.getContext().equals(Everywhere.EVERYWHERE))
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{
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//System.out.println("Call to "+callee+" from caller "+caller+" in context "+caller.getContext());
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}
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return super.getCalleeTarget(caller, site, callee, receivers);
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}
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@Override
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public IntSet getRelevantParameters(CGNode node, CallSiteReference call) {
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return super.getRelevantParameters(node,call);
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}
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}
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