/*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html.
*
* This file is a derivative of code released under the terms listed below.
*
*/
/*
*
* Copyright (c) 2009-2012,
*
* Adam Fuchs <afuchs@cs.umd.edu>
* Avik Chaudhuri <avik@cs.umd.edu>
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* 3. The names of the contributors may not be used to endorse or promote
* products derived from this software without specific prior written
* permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
*
*/
package org.scandroid.prefixtransfer;
import com.ibm.wala.classLoader.CallSiteReference;
import com.ibm.wala.classLoader.IMethod;
import com.ibm.wala.ipa.callgraph.AnalysisOptions;
import com.ibm.wala.ipa.callgraph.CGNode;
import com.ibm.wala.ipa.callgraph.Context;
import com.ibm.wala.ipa.callgraph.impl.DefaultContextSelector;
import com.ibm.wala.ipa.callgraph.impl.Everywhere;
import com.ibm.wala.ipa.callgraph.propagation.InstanceKey;
import com.ibm.wala.ipa.callgraph.propagation.NormalAllocationInNode;
import com.ibm.wala.ipa.callgraph.propagation.ReceiverInstanceContext;
import com.ibm.wala.ipa.callgraph.propagation.cfa.CallerSiteContext;
import com.ibm.wala.ipa.callgraph.propagation.cfa.CallerSiteContextPair;
import com.ibm.wala.ipa.cha.IClassHierarchy;
import com.ibm.wala.types.ClassLoaderReference;
import com.ibm.wala.util.intset.IntSet;
public class UriPrefixContextSelector extends DefaultContextSelector {
//private final ContextSelector delegate;
public UriPrefixContextSelector(AnalysisOptions options, IClassHierarchy cha) {
super(options, cha);
}
/* TODO: fix receivers[0] references. */
@Override
public Context getCalleeTarget(CGNode caller, CallSiteReference site,
IMethod callee, InstanceKey[] receivers) {
if(callee.getSignature().equals("java.lang.StringBuilder.toString()Ljava/lang/String;") ||
callee.getSignature().equals("java.lang.StringBuilder.append(Ljava/lang/String;)Ljava/lang/StringBuilder;") ||
callee.getSignature().equals("java.lang.String.valueOf(Ljava/lang/Object;)Ljava/lang/String;") ||
callee.getSignature().equals("java.lang.String.toString()Ljava/lang/String;") ||
callee.getSignature().equals("android.net.Uri.parse(Ljava/lang/String;)Landroid/net/Uri;") ||
callee.getSignature().equals("android.net.Uri.withAppendedPath(Landroid/net/Uri;Ljava/lang/String;)Landroid/net/Uri;") ||
// callee.getSignature().equals("android.net.Uri$StringUri.buildUpon()Landroid/net/Uri$Builder;") ||
// callee.getSignature().equals("android.net.Uri$OpaqueUri.buildUpon()Landroid/net/Uri$Builder;") ||
callee.getSignature().equals("android.net.Uri$Builder.build()Landroid/net/Uri;")
)
{
// System.out.println("Adding context to "+callee.getSignature());
// for (int i = 0; i < receivers.length; i++)
// System.out.println("\t#"+i+" "+receivers[i]);
if(receivers[0] instanceof NormalAllocationInNode)
{
// System.out.println("\t\tNormalAllocationInNode "+callee.getSignature());
if(((NormalAllocationInNode)receivers[0]).getSite().getDeclaredType().getClassLoader().equals(ClassLoaderReference.Application))
// create a context based on the site and the receiver
return new CallerSiteContextPair(caller,site,new ReceiverInstanceContext(receivers[0]));
// if (callee.getSignature().equals("android.net.Uri$StringUri.buildUpon()Landroid/net/Uri$Builder;") ||
// callee.getSignature().equals("android.net.Uri$OpaqueUri.buildUpon()Landroid/net/Uri$Builder;") ||
// callee.getSignature().equals("android.net.Uri$Builder.build()Landroid/net/Uri;"))
// return new CallerSiteContextPair(caller,site,new ReceiverInstanceContext(receivers[0]));
if (callee.getSignature().equals("android.net.Uri$Builder.build()Landroid/net/Uri;"))
return new CallerSiteContextPair(caller,site,new ReceiverInstanceContext(receivers[0]));
//return new CallerSiteContext(caller,site);
}
else if(callee.getSignature().equals("java.lang.String.valueOf(Ljava/lang/Object;)Ljava/lang/String;") ||
callee.getSignature().equals("java.lang.String.toString()Ljava/lang/String;") ||
callee.getSignature().equals("android.net.Uri.parse(Ljava/lang/String;)Landroid/net/Uri;") ||
callee.getSignature().equals("android.net.Uri.withAppendedPath(Landroid/net/Uri;Ljava/lang/String;)Landroid/net/Uri;")
)
{
return new CallerSiteContext(caller,site);
}
}
else //if(callee.getSignature().contains("value"))
{
// System.out.println("Found signature: "+callee.getSignature());
}
if(!caller.getContext().equals(Everywhere.EVERYWHERE))
{
//System.out.println("Call to "+callee+" from caller "+caller+" in context "+caller.getContext());
}
return super.getCalleeTarget(caller, site, callee, receivers);
}
@Override
public IntSet getRelevantParameters(CGNode node, CallSiteReference call) {
return super.getRelevantParameters(node,call);
}
}