| /* |
| * Copyright (C) 2016 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| import java.util.Base64; |
| |
| public class Main { |
| // class Transform { |
| // private void Start() { |
| // System.out.println("Hello - private - Transformed"); |
| // } |
| // |
| // private void Finish() { |
| // System.out.println("Goodbye - private - Transformed"); |
| // } |
| // |
| // public void sayHi(Runnable r) { |
| // System.out.println("Pre Start private method call - Transformed"); |
| // Start(); |
| // System.out.println("Post Start private method call - Transformed"); |
| // r.run(); |
| // System.out.println("Pre Finish private method call - Transformed"); |
| // Finish(); |
| // System.out.println("Post Finish private method call - Transformed"); |
| // } |
| // } |
| private static final byte[] CLASS_BYTES = Base64.getDecoder().decode( |
| "yv66vgAAADQAMgoADgAZCQAaABsIABwKAB0AHggAHwgAIAoADQAhCAAiCwAjACQIACUKAA0AJggA" + |
| "JwcAKAcAKQEABjxpbml0PgEAAygpVgEABENvZGUBAA9MaW5lTnVtYmVyVGFibGUBAAVTdGFydAEA" + |
| "BkZpbmlzaAEABXNheUhpAQAXKExqYXZhL2xhbmcvUnVubmFibGU7KVYBAApTb3VyY2VGaWxlAQAO" + |
| "VHJhbnNmb3JtLmphdmEMAA8AEAcAKgwAKwAsAQAdSGVsbG8gLSBwcml2YXRlIC0gVHJhbnNmb3Jt" + |
| "ZWQHAC0MAC4ALwEAH0dvb2RieWUgLSBwcml2YXRlIC0gVHJhbnNmb3JtZWQBACtQcmUgU3RhcnQg" + |
| "cHJpdmF0ZSBtZXRob2QgY2FsbCAtIFRyYW5zZm9ybWVkDAATABABACxQb3N0IFN0YXJ0IHByaXZh" + |
| "dGUgbWV0aG9kIGNhbGwgLSBUcmFuc2Zvcm1lZAcAMAwAMQAQAQAsUHJlIEZpbmlzaCBwcml2YXRl" + |
| "IG1ldGhvZCBjYWxsIC0gVHJhbnNmb3JtZWQMABQAEAEALVBvc3QgRmluaXNoIHByaXZhdGUgbWV0" + |
| "aG9kIGNhbGwgLSBUcmFuc2Zvcm1lZAEACVRyYW5zZm9ybQEAEGphdmEvbGFuZy9PYmplY3QBABBq" + |
| "YXZhL2xhbmcvU3lzdGVtAQADb3V0AQAVTGphdmEvaW8vUHJpbnRTdHJlYW07AQATamF2YS9pby9Q" + |
| "cmludFN0cmVhbQEAB3ByaW50bG4BABUoTGphdmEvbGFuZy9TdHJpbmc7KVYBABJqYXZhL2xhbmcv" + |
| "UnVubmFibGUBAANydW4AIAANAA4AAAAAAAQAAAAPABAAAQARAAAAHQABAAEAAAAFKrcAAbEAAAAB" + |
| "ABIAAAAGAAEAAAABAAIAEwAQAAEAEQAAACUAAgABAAAACbIAAhIDtgAEsQAAAAEAEgAAAAoAAgAA" + |
| "AAMACAAEAAIAFAAQAAEAEQAAACUAAgABAAAACbIAAhIFtgAEsQAAAAEAEgAAAAoAAgAAAAcACAAI" + |
| "AAEAFQAWAAEAEQAAAGMAAgACAAAAL7IAAhIGtgAEKrcAB7IAAhIItgAEK7kACQEAsgACEgq2AAQq" + |
| "twALsgACEgy2AASxAAAAAQASAAAAIgAIAAAACwAIAAwADAANABQADgAaAA8AIgAQACYAEQAuABIA" + |
| "AQAXAAAAAgAY"); |
| private static final byte[] DEX_BYTES = Base64.getDecoder().decode( |
| "ZGV4CjAzNQCM0QYTJmX+NsZXkImojgSkJtXyuew3oaXcBAAAcAAAAHhWNBIAAAAAAAAAADwEAAAX" + |
| "AAAAcAAAAAcAAADMAAAAAwAAAOgAAAABAAAADAEAAAcAAAAUAQAAAQAAAEwBAABwAwAAbAEAAD4C" + |
| "AABGAgAATgIAAG8CAACOAgAAmwIAALICAADGAgAA3AIAAPACAAAEAwAAMwMAAGEDAACPAwAAvAMA" + |
| "AMMDAADTAwAA1gMAANoDAADuAwAA8wMAAPwDAAABBAAABAAAAAUAAAAGAAAABwAAAAgAAAAJAAAA" + |
| "EAAAABAAAAAGAAAAAAAAABEAAAAGAAAAMAIAABEAAAAGAAAAOAIAAAUAAQATAAAAAAAAAAAAAAAA" + |
| "AAAAAQAAAAAAAAAOAAAAAAABABYAAAABAAIAFAAAAAIAAAAAAAAAAwAAABUAAAAAAAAAAAAAAAIA" + |
| "AAAAAAAADwAAAAAAAAAmBAAAAAAAAAEAAQABAAAACAQAAAQAAABwEAUAAAAOAAMAAQACAAAADQQA" + |
| "AAkAAABiAAAAGwECAAAAbiAEABAADgAAAAMAAQACAAAAEwQAAAkAAABiAAAAGwEDAAAAbiAEABAA" + |
| "DgAAAAQAAgACAAAAGQQAACoAAABiAAAAGwENAAAAbiAEABAAcBACAAIAYgAAABsBCwAAAG4gBAAQ" + |
| "AHIQBgADAGIAAAAbAQwAAABuIAQAEABwEAEAAgBiAAAAGwEKAAAAbiAEABAADgABAAAAAwAAAAEA" + |
| "AAAEAAY8aW5pdD4ABkZpbmlzaAAfR29vZGJ5ZSAtIHByaXZhdGUgLSBUcmFuc2Zvcm1lZAAdSGVs" + |
| "bG8gLSBwcml2YXRlIC0gVHJhbnNmb3JtZWQAC0xUcmFuc2Zvcm07ABVMamF2YS9pby9QcmludFN0" + |
| "cmVhbTsAEkxqYXZhL2xhbmcvT2JqZWN0OwAUTGphdmEvbGFuZy9SdW5uYWJsZTsAEkxqYXZhL2xh" + |
| "bmcvU3RyaW5nOwASTGphdmEvbGFuZy9TeXN0ZW07AC1Qb3N0IEZpbmlzaCBwcml2YXRlIG1ldGhv" + |
| "ZCBjYWxsIC0gVHJhbnNmb3JtZWQALFBvc3QgU3RhcnQgcHJpdmF0ZSBtZXRob2QgY2FsbCAtIFRy" + |
| "YW5zZm9ybWVkACxQcmUgRmluaXNoIHByaXZhdGUgbWV0aG9kIGNhbGwgLSBUcmFuc2Zvcm1lZAAr" + |
| "UHJlIFN0YXJ0IHByaXZhdGUgbWV0aG9kIGNhbGwgLSBUcmFuc2Zvcm1lZAAFU3RhcnQADlRyYW5z" + |
| "Zm9ybS5qYXZhAAFWAAJWTAASZW1pdHRlcjogamFjay00LjEzAANvdXQAB3ByaW50bG4AA3J1bgAF" + |
| "c2F5SGkAAQAHDgAHAAcOhwADAAcOhwALAQAHDoc8hzyHPIcAAAADAQCAgATsAgEChAMBAqgDAwHM" + |
| "Aw0AAAAAAAAAAQAAAAAAAAABAAAAFwAAAHAAAAACAAAABwAAAMwAAAADAAAAAwAAAOgAAAAEAAAA" + |
| "AQAAAAwBAAAFAAAABwAAABQBAAAGAAAAAQAAAEwBAAABIAAABAAAAGwBAAABEAAAAgAAADACAAAC" + |
| "IAAAFwAAAD4CAAADIAAABAAAAAgEAAAAIAAAAQAAACYEAAAAEAAAAQAAADwEAAA="); |
| |
| public static void main(String[] args) { |
| doTest(new Transform()); |
| } |
| |
| public static void doTest(Transform t) { |
| t.sayHi(() -> { System.out.println("Not doing anything here"); }); |
| t.sayHi(() -> { |
| System.out.println("transforming calling function"); |
| doCommonClassRedefinition(Transform.class, CLASS_BYTES, DEX_BYTES); |
| }); |
| t.sayHi(() -> { System.out.println("Not doing anything here"); }); |
| } |
| |
| // Transforms the class |
| private static native void doCommonClassRedefinition(Class<?> target, |
| byte[] classfile, |
| byte[] dexfile); |
| } |