/** * Converts field annotations from Dexlib to Jimple * * @param h * @param f */ void handleFieldAnnotation(Host h, Field f) { Set<? extends Annotation> aSet = f.getAnnotations(); if (aSet != null && !aSet.isEmpty()) { List<Tag> tags = handleAnnotation(aSet, null); if (tags != null) for (Tag t : tags) if (t != null) { h.addTag(t); Debug.printDbg("add field annotation: ", t); } } }
void handleClassAnnotation(ClassDef classDef) { Set<? extends Annotation> aSet = classDef.getAnnotations(); if (aSet == null || aSet.isEmpty()) return; List<Tag> tags = handleAnnotation(aSet, classDef.getType()); if (tags == null) return; InnerClassAttribute ica = null; for (Tag t : tags) if (t != null) { if (t instanceof InnerClassTag) { if (ica == null) { // Do we already have an InnerClassAttribute? ica = (InnerClassAttribute) clazz.getTag("InnerClassAttribute"); // If not, create one if (ica == null) { ica = new InnerClassAttribute(); clazz.addTag(ica); } } ica.add((InnerClassTag) t); } else if (t instanceof VisibilityAnnotationTag) { // If a dalvik/annotation/AnnotationDefault tag is present // in a class, its AnnotationElements must be propagated // to methods through the creation of new AnnotationDefaultTag. VisibilityAnnotationTag vt = (VisibilityAnnotationTag) t; for (AnnotationTag a : vt.getAnnotations()) { if (a.getType().equals("Ldalvik/annotation/AnnotationDefault;")) { for (AnnotationElem ae : a.getElems()) { if (ae instanceof AnnotationAnnotationElem) { AnnotationAnnotationElem aae = (AnnotationAnnotationElem) ae; AnnotationTag at = aae.getValue(); // extract default elements Map<String, AnnotationElem> defaults = new HashMap<String, AnnotationElem>(); for (AnnotationElem aelem : at.getElems()) { defaults.put(aelem.getName(), aelem); } // create default tags containing default elements // and add tags on methods for (SootMethod sm : clazz.getMethods()) { String methodName = sm.getName(); if (defaults.containsKey(methodName)) { AnnotationElem e = defaults.get(methodName); // Okay, the name is the same, but is it actually the same type? Type annotationType = getSootType(e); boolean isCorrectType = false; if (annotationType == null) { // we do not know the type of the annotation, so we guess it's the correct // type. isCorrectType = true; } else { if (annotationType.equals(sm.getReturnType())) { isCorrectType = true; } else if (annotationType.equals(ARRAY_TYPE)) { if (sm.getReturnType() instanceof ArrayType) isCorrectType = true; } } if (isCorrectType && sm.getParameterCount() == 0) { e.setName("default"); AnnotationDefaultTag d = new AnnotationDefaultTag(e); sm.addTag(d); // In case there is more than one matching method, we only use the first one defaults.remove(sm.getName()); } } } for (Entry<String, AnnotationElem> leftOverEntry : defaults.entrySet()) { // We were not able to find a matching method for the tag, because the return // signature // does not match SootMethod found = clazz.getMethodByNameUnsafe(leftOverEntry.getKey()); AnnotationElem element = leftOverEntry.getValue(); if (found != null) { element.setName("default"); AnnotationDefaultTag d = new AnnotationDefaultTag(element); found.addTag(d); } } } } } } if (!(vt.getVisibility() == AnnotationConstants.RUNTIME_INVISIBLE)) clazz.addTag(vt); } else { clazz.addTag(t); } Debug.printDbg("add class annotation: ", t, " type: ", t.getClass()); } }
/** * @param annotations * @return */ private List<Tag> handleAnnotation( Set<? extends org.jf.dexlib2.iface.Annotation> annotations, String classType) { if (annotations == null || annotations.size() == 0) return null; List<Tag> tags = new ArrayList<Tag>(); VisibilityAnnotationTag[] vatg = new VisibilityAnnotationTag[3]; // RUNTIME_VISIBLE, RUNTIME_INVISIBLE, SOURCE_VISIBLE, see // soot.tagkit.AnnotationConstants for (Annotation a : annotations) { int v = getVisibility(a.getVisibility()); Tag t = null; Type atype = DexType.toSoot(a.getType()); String atypes = atype.toString(); int eSize = a.getElements().size(); Debug.printDbg("annotation type: ", atypes, " elements: ", eSize); if (atypes.equals("dalvik.annotation.AnnotationDefault")) { if (eSize != 1) throw new RuntimeException( "error: expected 1 element for annotation Default. Got " + eSize + " instead."); // get element AnnotationElem e = getElements(a.getElements()).get(0); AnnotationTag adt = new AnnotationTag(a.getType()); adt.addElem(e); if (vatg[v] == null) vatg[v] = new VisibilityAnnotationTag(v); vatg[v].addAnnotation(adt); } else if (atypes.equals("dalvik.annotation.EnclosingClass")) { if (eSize != 1) throw new RuntimeException( "error: expected 1 element for annotation EnclosingClass. Got " + eSize + " instead."); for (AnnotationElement elem : a.getElements()) { String outerClass = ((TypeEncodedValue) elem.getValue()).getValue(); outerClass = Util.dottedClassName(outerClass); deps.typesToSignature.add(RefType.v(outerClass)); clazz.setOuterClass(SootResolver.v().makeClassRef(outerClass)); assert clazz.getOuterClass() != clazz; } // EnclosingClass comes in pair with InnerClass. // Those are generated from a single InnerClassTag, // that is re-constructed only for the InnerClass Dalvik // annotation. continue; } else if (atypes.equals("dalvik.annotation.EnclosingMethod")) { if (eSize != 1) throw new RuntimeException( "error: expected 1 element for annotation EnclosingMethod. Got " + eSize + " instead."); AnnotationStringElem e = (AnnotationStringElem) getElements(a.getElements()).get(0); String[] split1 = e.getValue().split("\\ \\|"); String classString = split1[0]; String methodString = split1[1]; String parameters = split1[2]; String returnType = split1[3]; String methodSigString = "(" + parameters + ")" + returnType; t = new EnclosingMethodTag(classString, methodString, methodSigString); String outerClass = classString.replace("/", "."); deps.typesToSignature.add(RefType.v(outerClass)); clazz.setOuterClass(SootResolver.v().makeClassRef(outerClass)); assert clazz.getOuterClass() != clazz; } else if (atypes.equals("dalvik.annotation.InnerClass")) { int accessFlags = -1; // access flags of the inner class String name = null; // name of the inner class for (AnnotationElem ele : getElements(a.getElements())) { if (ele instanceof AnnotationIntElem && ele.getName().equals("accessFlags")) accessFlags = ((AnnotationIntElem) ele).getValue(); else if (ele instanceof AnnotationStringElem && ele.getName().equals("name")) name = ((AnnotationStringElem) ele).getValue(); else throw new RuntimeException("Unexpected inner class annotation element"); } String outerClass; // outer class name if (name == null) outerClass = classType.replaceAll("\\$[0-9,a-z,A-Z]*;$", ";"); else outerClass = classType.replaceFirst("\\$" + name + ";$", ";"); // Make sure that no funny business is going on if the // annotation is broken and does not end in $nn. if (outerClass.equals(classType)) { outerClass = null; } Tag innerTag = new InnerClassTag( DexType.toSootICAT(classType), outerClass == null ? null : DexType.toSootICAT(outerClass), name, accessFlags); tags.add(innerTag); if (outerClass != null && !clazz.hasOuterClass()) { String sootOuterClass = Util.dottedClassName(outerClass); deps.typesToSignature.add(RefType.v(sootOuterClass)); clazz.setOuterClass(SootResolver.v().makeClassRef(sootOuterClass)); assert clazz.getOuterClass() != clazz; } continue; } else if (atypes.equals("dalvik.annotation.MemberClasses")) { AnnotationArrayElem e = (AnnotationArrayElem) getElements(a.getElements()).get(0); for (AnnotationElem ae : e.getValues()) { AnnotationClassElem c = (AnnotationClassElem) ae; String innerClass = c.getDesc(); String outerClass = innerClass.replaceAll("\\$[^\\$]*$", ""); String name = innerClass.replaceAll("^.*\\$", "").replaceAll(";$", ""); if (name.replaceAll("[0-9].*", "").equals("")) { // anonymous or local inner classes name = null; } int accessFlags = 0; // seems like this information is lost during the .class -- dx --> .dex process. Tag innerTag = new InnerClassTag( DexType.toSootICAT(innerClass), DexType.toSootICAT(outerClass), name, accessFlags); tags.add(innerTag); } continue; } else if (atypes.equals("dalvik.annotation.Signature")) { if (eSize != 1) throw new RuntimeException( "error: expected 1 element for annotation Signature. Got " + eSize + " instead."); AnnotationArrayElem e = (AnnotationArrayElem) getElements(a.getElements()).get(0); String sig = ""; for (AnnotationElem ae : e.getValues()) { AnnotationStringElem s = (AnnotationStringElem) ae; sig += s.getValue(); } t = new SignatureTag(sig); } else if (atypes.equals("dalvik.annotation.Throws")) { // this is handled in soot.dexpler.DexMethod continue; } else if (atypes.equals("java.lang.Deprecated")) { if (eSize != 0) throw new RuntimeException( "error: expected 1 element for annotation Deprecated. Got " + eSize + " instead."); t = new DeprecatedTag(); AnnotationTag adt = new AnnotationTag("Ljava/lang/Deprecated;"); if (vatg[v] == null) vatg[v] = new VisibilityAnnotationTag(v); vatg[v].addAnnotation(adt); } else { Debug.printDbg("read visibility tag: ", a.getType()); if (vatg[v] == null) vatg[v] = new VisibilityAnnotationTag(v); AnnotationTag tag = new AnnotationTag(a.getType()); for (AnnotationElem e : getElements(a.getElements())) tag.addElem(e); vatg[v].addAnnotation(tag); } tags.add(t); } for (VisibilityAnnotationTag vat : vatg) if (vat != null) tags.add(vat); return tags; }
/** * Converts method and method parameters annotations from Dexlib to Jimple * * @param h * @param method */ void handleMethodAnnotation(Host h, Method method) { Set<? extends Annotation> aSet = method.getAnnotations(); if (!(aSet == null || aSet.isEmpty())) { List<Tag> tags = handleAnnotation(aSet, null); if (tags != null) for (Tag t : tags) if (t != null) { h.addTag(t); Debug.printDbg("add method annotation: ", t); } } ArrayList<String> parameterNames = new ArrayList<String>(); boolean addParameterNames = false; for (MethodParameter p : method.getParameters()) { String name = p.getName(); parameterNames.add(name); if (name != null) addParameterNames = true; } if (addParameterNames) { h.addTag(new ParamNamesTag(parameterNames)); } // Is there any parameter annotation? boolean doParam = false; List<? extends MethodParameter> parameters = method.getParameters(); for (MethodParameter p : parameters) { Debug.printDbg("parameter ", p, " annotations: ", p.getAnnotations()); if (p.getAnnotations().size() > 0) { doParam = true; break; } } if (doParam) { VisibilityParameterAnnotationTag tag = new VisibilityParameterAnnotationTag( parameters.size(), AnnotationConstants.RUNTIME_VISIBLE); for (MethodParameter p : parameters) { List<Tag> tags = handleAnnotation(p.getAnnotations(), null); // If we have no tag for this parameter, add a placeholder // so that we keep the order intact. if (tags == null) { tag.addVisibilityAnnotation(null); continue; } VisibilityAnnotationTag paramVat = new VisibilityAnnotationTag(AnnotationConstants.RUNTIME_VISIBLE); tag.addVisibilityAnnotation(paramVat); for (Tag t : tags) { if (t == null) continue; AnnotationTag vat = null; if (!(t instanceof VisibilityAnnotationTag)) { if (t instanceof DeprecatedTag) { vat = new AnnotationTag("Ljava/lang/Deprecated;"); } else if (t instanceof SignatureTag) { SignatureTag sig = (SignatureTag) t; ArrayList<AnnotationElem> sigElements = new ArrayList<AnnotationElem>(); for (String s : SootToDexUtils.splitSignature(sig.getSignature())) sigElements.add(new AnnotationStringElem(s, 's', "value")); AnnotationElem elem = new AnnotationArrayElem(sigElements, 's', "value"); vat = new AnnotationTag("Ldalvik/annotation/Signature;", Collections.singleton(elem)); } else { throw new RuntimeException( "error: unhandled tag for parameter annotation in method " + h + " (" + t + ")."); } } else { vat = ((VisibilityAnnotationTag) t).getAnnotations().get(0); } Debug.printDbg("add parameter annotation: ", t); paramVat.addAnnotation(vat); } } if (tag.getVisibilityAnnotations().size() > 0) h.addTag(tag); } }