111 lines
5.0 KiB
Java
111 lines
5.0 KiB
Java
/*
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* Copyright (C) 2018 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import java.io.File;
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import java.lang.reflect.Method;
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import java.util.Base64;
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public class Main {
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public static void main(String[] args) throws ClassNotFoundException {
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System.loadLibrary(args[0]);
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// Run the initialization routine. This will enable hidden API checks in
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// the runtime, in case they are not enabled by default.
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init();
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// Load the '-ex' APK and attach it to the boot class path.
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appendToBootClassLoader(DEX_EXTRA, /* isCorePlatform */ false);
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// Find the test class in boot class loader and verify that its members are hidden.
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Class<?> klass = Class.forName("art.Test999", true, BOOT_CLASS_LOADER);
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assertFieldIsHidden(klass, "before redefinition");
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assertMethodIsHidden(klass, "before redefinition");
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// Redefine the class using JVMTI. Use dex file without hiddenapi flags.
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art.Redefinition.setTestConfiguration(art.Redefinition.Config.COMMON_REDEFINE);
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art.Redefinition.doCommonClassRedefinition(klass, CLASS_BYTES, DEX_BYTES);
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// Verify that the class members are still hidden.
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assertFieldIsHidden(klass, "after first redefinition");
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assertMethodIsHidden(klass, "after first redefinition");
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}
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private static void assertMethodIsHidden(Class<?> klass, String msg) {
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try {
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klass.getDeclaredMethod("foo");
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// Unexpected. Should have thrown NoSuchMethodException.
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throw new RuntimeException("Method should not be accessible " + msg);
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} catch (NoSuchMethodException ex) {
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}
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}
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private static void assertFieldIsHidden(Class<?> klass, String msg) {
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try {
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klass.getDeclaredField("bar");
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// Unexpected. Should have thrown NoSuchFieldException.
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throw new RuntimeException("Field should not be accessible " + msg);
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} catch (NoSuchFieldException ex) {
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}
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}
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private static final String DEX_EXTRA =
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new File(System.getenv("DEX_LOCATION"), "999-redefine-hiddenapi-ex.jar").getAbsolutePath();
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private static ClassLoader BOOT_CLASS_LOADER = Object.class.getClassLoader();
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// Native functions. Note that these are implemented in 674-hiddenapi/hiddenapi.cc.
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private static native void appendToBootClassLoader(String dexPath, boolean isCorePlatform);
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private static native void init();
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/**
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* base64 encoded class/dex file for
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*
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* public class Test999 {
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* public void foo() {
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* System.out.println("Goodbye");
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* }
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*
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* public int bar = 64;
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* }
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*/
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private static final byte[] CLASS_BYTES = Base64.getDecoder().decode(
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"yv66vgAAADUAIAoABwARCQAGABIJABMAFAgAFQoAFgAXBwAYBwAZAQADYmFyAQABSQEABjxpbml0" +
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"PgEAAygpVgEABENvZGUBAA9MaW5lTnVtYmVyVGFibGUBAANmb28BAApTb3VyY2VGaWxlAQAMVGVz" +
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"dDk5OS5qYXZhDAAKAAsMAAgACQcAGgwAGwAcAQAHR29vZGJ5ZQcAHQwAHgAfAQALYXJ0L1Rlc3Q5" +
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"OTkBABBqYXZhL2xhbmcvT2JqZWN0AQAQamF2YS9sYW5nL1N5c3RlbQEAA291dAEAFUxqYXZhL2lv" +
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"L1ByaW50U3RyZWFtOwEAE2phdmEvaW8vUHJpbnRTdHJlYW0BAAdwcmludGxuAQAVKExqYXZhL2xh" +
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"bmcvU3RyaW5nOylWACEABgAHAAAAAQABAAgACQAAAAIAAQAKAAsAAQAMAAAAJwACAAEAAAALKrcA" +
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"ASoQQLUAArEAAAABAA0AAAAKAAIAAAATAAQAGAABAA4ACwABAAwAAAAlAAIAAQAAAAmyAAMSBLYA" +
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"BbEAAAABAA0AAAAKAAIAAAAVAAgAFgABAA8AAAACABA=");
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private static final byte[] DEX_BYTES = Base64.getDecoder().decode(
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"ZGV4CjAzNQDlfmgFfKulToQpDF+P4dsgeOkgfzzH+5lgAwAAcAAAAHhWNBIAAAAAAAAAALQCAAAQ" +
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"AAAAcAAAAAcAAACwAAAAAgAAAMwAAAACAAAA5AAAAAQAAAD0AAAAAQAAABQBAAAsAgAANAEAAIYB" +
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"AACOAQAAlwEAAJoBAACpAQAAwAEAANQBAADoAQAA/AEAAAoCAAANAgAAEQIAABYCAAAbAgAAIAIA" +
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"ACkCAAACAAAAAwAAAAQAAAAFAAAABgAAAAcAAAAJAAAACQAAAAYAAAAAAAAACgAAAAYAAACAAQAA" +
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"AQAAAAsAAAAFAAIADQAAAAEAAAAAAAAAAQAAAAwAAAACAAEADgAAAAMAAAAAAAAAAQAAAAEAAAAD" +
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"AAAAAAAAAAgAAAAAAAAAoAIAAAAAAAACAAEAAQAAAHQBAAAIAAAAcBADAAEAEwBAAFkQAAAOAAMA" +
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"AQACAAAAeQEAAAgAAABiAAEAGgEBAG4gAgAQAA4AEwAOQAAVAA54AAAAAQAAAAQABjxpbml0PgAH" +
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"R29vZGJ5ZQABSQANTGFydC9UZXN0OTk5OwAVTGphdmEvaW8vUHJpbnRTdHJlYW07ABJMamF2YS9s" +
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"YW5nL09iamVjdDsAEkxqYXZhL2xhbmcvU3RyaW5nOwASTGphdmEvbGFuZy9TeXN0ZW07AAxUZXN0" +
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"OTk5LmphdmEAAVYAAlZMAANiYXIAA2ZvbwADb3V0AAdwcmludGxuAHV+fkQ4eyJjb21waWxhdGlv" +
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"bi1tb2RlIjoiZGVidWciLCJtaW4tYXBpIjoxLCJzaGEtMSI6ImQyMmFiNGYxOWI3NTYxNDQ3NTI4" +
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"NTdjYTg2YjJjZWU0ZGQ5Y2ExNjYiLCJ2ZXJzaW9uIjoiMS40LjktZGV2In0AAAEBAQABAIGABLQC" +
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"AQHUAgAAAAAOAAAAAAAAAAEAAAAAAAAAAQAAABAAAABwAAAAAgAAAAcAAACwAAAAAwAAAAIAAADM" +
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"AAAABAAAAAIAAADkAAAABQAAAAQAAAD0AAAABgAAAAEAAAAUAQAAASAAAAIAAAA0AQAAAyAAAAIA" +
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"AAB0AQAAARAAAAEAAACAAQAAAiAAABAAAACGAQAAACAAAAEAAACgAgAAAxAAAAEAAACwAgAAABAA" +
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"AAEAAAC0AgAA");
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}
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