package com.dta.lesson32;
import com.github.unidbg.AndroidEmulator;
import com.github.unidbg.Module;
import com.github.unidbg.linux.AndroidElfLoader;
import com.github.unidbg.linux.android.AndroidEmulatorBuilder;
import com.github.unidbg.linux.android.AndroidResolver;
import com.github.unidbg.linux.android.dvm.*;
import com.github.unidbg.linux.android.dvm.array.ByteArray;
import com.github.unidbg.memory.Memory;
import org.apache.log4j.Level;
import org.apache.log4j.Logger;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.security.MessageDigest;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.List;
import java.util.zip.ZipEntry;
import java.util.zip.ZipFile;
public class MainActivity extends AbstractJni {
private final AndroidEmulator emulator;
private final VM vm;
private final Memory memory;
private final Module module;
public MainActivity(){
emulator = AndroidEmulatorBuilder
.for32Bit()
//.setRootDir(new File("target/rootfs/default"))
//.addBackendFactory(new DynarmicFactory(true))
.build();
memory = emulator.getMemory();
memory.setLibraryResolver(new AndroidResolver(23));
vm = emulator.createDalvikVM();
vm.setVerbose(true);
vm.setJni(this);
DalvikModule dalvikModule = vm.loadLibrary(new File("unidbg-android/src/test/java/com/dta/lesson32/libdogpro.so"), false);
module = dalvikModule.getModule();
vm.callJNI_OnLoad(emulator,module);
}
public static void main(String[] args) {
long start = System.currentTimeMillis();
MainActivity mainActivity = new MainActivity();
System.out.println("load the vm "+( System.currentTimeMillis() - start )+ "ms");
mainActivity.getHash();
}
private void getHash() {
DvmObject<?> dvmObject = vm.resolveClass("com/example/dogpro/MainActivity").newObject(null);
//public native String getHash(String str);
///data/app/com.example.dogpro-pnF2J3-qBi8ei74vXTNXmQ==/base.apk
String input = "/data/app/com.example.dogpro-pnF2J3-qBi8ei74vXTNXmQ==/base.apk";
DvmObject<?> ret = dvmObject.callJniMethodObject(emulator, "getHash(Ljava/lang/String;)Ljava/lang/String;", input);
System.out.println("result ==> "+ret.getValue());
}
@Override
public DvmObject<?> newObjectV(BaseVM vm, DvmClass dvmClass, String signature, VaList vaList) {
if (signature.equals("java/util/zip/ZipFile-><init>(Ljava/lang/String;)V")){
String name = (String) vaList.getObjectArg(0).getValue();
try {
if (name.equals("/data/app/com.example.dogpro-pnF2J3-qBi8ei74vXTNXmQ==/base.apk")){
ZipFile zipFile = new ZipFile("unidbg-android/src/test/java/com/dta/lesson32/app-debug.apk");
return vm.resolveClass("java/util/zip/ZipFile").newObject(zipFile);
}
return null;
} catch (IOException e) {
e.printStackTrace();
return null;
}
}
return super.newObjectV(vm, dvmClass, signature, vaList);
}
@Override
public DvmObject<?> callObjectMethodV(BaseVM vm, DvmObject<?> dvmObject, String signature, VaList vaList) {
// if (signature.equals("java/util/zip/ZipFile->entries()Ljava/util/Enumeration;")){
// ZipFile zipFile = (ZipFile) dvmObject.getValue();
// Enumeration<? extends ZipEntry> entries = zipFile.entries();
// DvmClass ZipEntryClass = vm.resolveClass("java/util/zip/ZipEntry");
// List<DvmObject<?>> objs = new ArrayList<>();
// while (entries.hasMoreElements()){
// ZipEntry zipEntry = entries.nextElement();
// objs.add(ZipEntryClass.newObject(zipEntry));
// }
// return new com.github.unidbg.linux.android.dvm.Enumeration(vm,objs);
// }
if (signature.equals("java/util/zip/ZipEntry->getName()Ljava/lang/String;")){
ZipEntry zipEntry = (ZipEntry) dvmObject.getValue();
String name = zipEntry.getName();
return new StringObject(vm,name);
}
if (signature.equals("java/lang/String->toLowerCase()Ljava/lang/String;")){
String s = (String) dvmObject.getValue();
String s1 = s.toLowerCase();
return new StringObject(vm,s1);
}
if (signature.equals("java/util/zip/ZipFile->getInputStream(Ljava/util/zip/ZipEntry;)Ljava/io/InputStream;")){
ZipFile zipFile = (ZipFile) dvmObject.getValue();
ZipEntry zipEntry = (ZipEntry) vaList.getObjectArg(0).getValue();
try {
InputStream inputStream = zipFile.getInputStream(zipEntry);
return vm.resolveClass("java/io/InputStream").newObject(inputStream);
} catch (IOException e) {
e.printStackTrace();
return null;
}
}
if (signature.equals("java/security/MessageDigest->digest()[B")){
MessageDigest md = (MessageDigest) dvmObject.getValue();
byte[] digest = md.digest();
return new ByteArray(vm, digest);
}
return super.callObjectMethodV(vm, dvmObject, signature, vaList);
}
@Override
public boolean callBooleanMethodV(BaseVM vm, DvmObject<?> dvmObject, String signature, VaList vaList) {
if (signature.equals("java/lang/String->endsWith(Ljava/lang/String;)Z")){
String value = (String) dvmObject.getValue();
String suffix = (String) vaList.getObjectArg(0).getValue();
return value.endsWith(suffix);
}
return super.callBooleanMethodV(vm, dvmObject, signature, vaList);
}
@Override
public int callIntMethodV(BaseVM vm, DvmObject<?> dvmObject, String signature, VaList vaList) {
if (signature.equals("java/io/InputStream->read([B)I")){
InputStream inputStream = (InputStream) dvmObject.getValue();
byte[] bytes = (byte[]) vaList.getObjectArg(0).getValue();
try {
int read = inputStream.read(bytes);
return read;
} catch (IOException e) {
e.printStackTrace();
return -1;
}
}
return super.callIntMethodV(vm, dvmObject, signature, vaList);
}
@Override
public void callVoidMethodV(BaseVM vm, DvmObject<?> dvmObject, String signature, VaList vaList) {
if (signature.equals("java/security/MessageDigest->update([B)V")){
MessageDigest md = (MessageDigest) dvmObject.getValue();
byte[] bytes = (byte[]) vaList.getObjectArg(0).getValue();
md.update(bytes);
return;
}
super.callVoidMethodV(vm, dvmObject, signature, vaList);
}
}
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文章来源:https://www.toymoban.com/news/detail-508453.html
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