Alex Light | ce77fc0 | 2016-12-15 01:05:52 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (C) 2016 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | import java.util.Base64; |
| 18 | |
| 19 | public class Main { |
| 20 | // class Transform { |
| 21 | // private void Start() { |
| 22 | // System.out.println("Hello - private - Transformed"); |
| 23 | // } |
| 24 | // |
| 25 | // private void Finish() { |
| 26 | // System.out.println("Goodbye - private - Transformed"); |
| 27 | // } |
| 28 | // |
| 29 | // public void sayHi(Runnable r) { |
| 30 | // System.out.println("Pre Start private method call - Transformed"); |
| 31 | // Start(); |
| 32 | // System.out.println("Post Start private method call - Transformed"); |
| 33 | // r.run(); |
| 34 | // System.out.println("Pre Finish private method call - Transformed"); |
| 35 | // Finish(); |
| 36 | // System.out.println("Post Finish private method call - Transformed"); |
| 37 | // } |
| 38 | // } |
| 39 | private static final byte[] CLASS_BYTES = Base64.getDecoder().decode( |
| 40 | "yv66vgAAADQAMgoADgAZCQAaABsIABwKAB0AHggAHwgAIAoADQAhCAAiCwAjACQIACUKAA0AJggA" + |
| 41 | "JwcAKAcAKQEABjxpbml0PgEAAygpVgEABENvZGUBAA9MaW5lTnVtYmVyVGFibGUBAAVTdGFydAEA" + |
| 42 | "BkZpbmlzaAEABXNheUhpAQAXKExqYXZhL2xhbmcvUnVubmFibGU7KVYBAApTb3VyY2VGaWxlAQAO" + |
| 43 | "VHJhbnNmb3JtLmphdmEMAA8AEAcAKgwAKwAsAQAdSGVsbG8gLSBwcml2YXRlIC0gVHJhbnNmb3Jt" + |
| 44 | "ZWQHAC0MAC4ALwEAH0dvb2RieWUgLSBwcml2YXRlIC0gVHJhbnNmb3JtZWQBACtQcmUgU3RhcnQg" + |
| 45 | "cHJpdmF0ZSBtZXRob2QgY2FsbCAtIFRyYW5zZm9ybWVkDAATABABACxQb3N0IFN0YXJ0IHByaXZh" + |
| 46 | "dGUgbWV0aG9kIGNhbGwgLSBUcmFuc2Zvcm1lZAcAMAwAMQAQAQAsUHJlIEZpbmlzaCBwcml2YXRl" + |
| 47 | "IG1ldGhvZCBjYWxsIC0gVHJhbnNmb3JtZWQMABQAEAEALVBvc3QgRmluaXNoIHByaXZhdGUgbWV0" + |
| 48 | "aG9kIGNhbGwgLSBUcmFuc2Zvcm1lZAEACVRyYW5zZm9ybQEAEGphdmEvbGFuZy9PYmplY3QBABBq" + |
| 49 | "YXZhL2xhbmcvU3lzdGVtAQADb3V0AQAVTGphdmEvaW8vUHJpbnRTdHJlYW07AQATamF2YS9pby9Q" + |
| 50 | "cmludFN0cmVhbQEAB3ByaW50bG4BABUoTGphdmEvbGFuZy9TdHJpbmc7KVYBABJqYXZhL2xhbmcv" + |
| 51 | "UnVubmFibGUBAANydW4AIAANAA4AAAAAAAQAAAAPABAAAQARAAAAHQABAAEAAAAFKrcAAbEAAAAB" + |
| 52 | "ABIAAAAGAAEAAAABAAIAEwAQAAEAEQAAACUAAgABAAAACbIAAhIDtgAEsQAAAAEAEgAAAAoAAgAA" + |
| 53 | "AAMACAAEAAIAFAAQAAEAEQAAACUAAgABAAAACbIAAhIFtgAEsQAAAAEAEgAAAAoAAgAAAAcACAAI" + |
| 54 | "AAEAFQAWAAEAEQAAAGMAAgACAAAAL7IAAhIGtgAEKrcAB7IAAhIItgAEK7kACQEAsgACEgq2AAQq" + |
| 55 | "twALsgACEgy2AASxAAAAAQASAAAAIgAIAAAACwAIAAwADAANABQADgAaAA8AIgAQACYAEQAuABIA" + |
| 56 | "AQAXAAAAAgAY"); |
| 57 | private static final byte[] DEX_BYTES = Base64.getDecoder().decode( |
| 58 | "ZGV4CjAzNQCM0QYTJmX+NsZXkImojgSkJtXyuew3oaXcBAAAcAAAAHhWNBIAAAAAAAAAADwEAAAX" + |
| 59 | "AAAAcAAAAAcAAADMAAAAAwAAAOgAAAABAAAADAEAAAcAAAAUAQAAAQAAAEwBAABwAwAAbAEAAD4C" + |
| 60 | "AABGAgAATgIAAG8CAACOAgAAmwIAALICAADGAgAA3AIAAPACAAAEAwAAMwMAAGEDAACPAwAAvAMA" + |
| 61 | "AMMDAADTAwAA1gMAANoDAADuAwAA8wMAAPwDAAABBAAABAAAAAUAAAAGAAAABwAAAAgAAAAJAAAA" + |
| 62 | "EAAAABAAAAAGAAAAAAAAABEAAAAGAAAAMAIAABEAAAAGAAAAOAIAAAUAAQATAAAAAAAAAAAAAAAA" + |
| 63 | "AAAAAQAAAAAAAAAOAAAAAAABABYAAAABAAIAFAAAAAIAAAAAAAAAAwAAABUAAAAAAAAAAAAAAAIA" + |
| 64 | "AAAAAAAADwAAAAAAAAAmBAAAAAAAAAEAAQABAAAACAQAAAQAAABwEAUAAAAOAAMAAQACAAAADQQA" + |
| 65 | "AAkAAABiAAAAGwECAAAAbiAEABAADgAAAAMAAQACAAAAEwQAAAkAAABiAAAAGwEDAAAAbiAEABAA" + |
| 66 | "DgAAAAQAAgACAAAAGQQAACoAAABiAAAAGwENAAAAbiAEABAAcBACAAIAYgAAABsBCwAAAG4gBAAQ" + |
| 67 | "AHIQBgADAGIAAAAbAQwAAABuIAQAEABwEAEAAgBiAAAAGwEKAAAAbiAEABAADgABAAAAAwAAAAEA" + |
| 68 | "AAAEAAY8aW5pdD4ABkZpbmlzaAAfR29vZGJ5ZSAtIHByaXZhdGUgLSBUcmFuc2Zvcm1lZAAdSGVs" + |
| 69 | "bG8gLSBwcml2YXRlIC0gVHJhbnNmb3JtZWQAC0xUcmFuc2Zvcm07ABVMamF2YS9pby9QcmludFN0" + |
| 70 | "cmVhbTsAEkxqYXZhL2xhbmcvT2JqZWN0OwAUTGphdmEvbGFuZy9SdW5uYWJsZTsAEkxqYXZhL2xh" + |
| 71 | "bmcvU3RyaW5nOwASTGphdmEvbGFuZy9TeXN0ZW07AC1Qb3N0IEZpbmlzaCBwcml2YXRlIG1ldGhv" + |
| 72 | "ZCBjYWxsIC0gVHJhbnNmb3JtZWQALFBvc3QgU3RhcnQgcHJpdmF0ZSBtZXRob2QgY2FsbCAtIFRy" + |
| 73 | "YW5zZm9ybWVkACxQcmUgRmluaXNoIHByaXZhdGUgbWV0aG9kIGNhbGwgLSBUcmFuc2Zvcm1lZAAr" + |
| 74 | "UHJlIFN0YXJ0IHByaXZhdGUgbWV0aG9kIGNhbGwgLSBUcmFuc2Zvcm1lZAAFU3RhcnQADlRyYW5z" + |
| 75 | "Zm9ybS5qYXZhAAFWAAJWTAASZW1pdHRlcjogamFjay00LjEzAANvdXQAB3ByaW50bG4AA3J1bgAF" + |
| 76 | "c2F5SGkAAQAHDgAHAAcOhwADAAcOhwALAQAHDoc8hzyHPIcAAAADAQCAgATsAgEChAMBAqgDAwHM" + |
| 77 | "Aw0AAAAAAAAAAQAAAAAAAAABAAAAFwAAAHAAAAACAAAABwAAAMwAAAADAAAAAwAAAOgAAAAEAAAA" + |
| 78 | "AQAAAAwBAAAFAAAABwAAABQBAAAGAAAAAQAAAEwBAAABIAAABAAAAGwBAAABEAAAAgAAADACAAAC" + |
| 79 | "IAAAFwAAAD4CAAADIAAABAAAAAgEAAAAIAAAAQAAACYEAAAAEAAAAQAAADwEAAA="); |
| 80 | |
| 81 | public static void main(String[] args) { |
| 82 | System.loadLibrary(args[1]); |
| 83 | doTest(new Transform()); |
| 84 | } |
| 85 | |
| 86 | public static void doTest(Transform t) { |
| 87 | t.sayHi(() -> { System.out.println("Not doing anything here"); }); |
| 88 | t.sayHi(() -> { |
| 89 | System.out.println("transforming calling function"); |
| 90 | doCommonClassRedefinition(Transform.class, CLASS_BYTES, DEX_BYTES); |
| 91 | }); |
| 92 | t.sayHi(() -> { System.out.println("Not doing anything here"); }); |
| 93 | } |
| 94 | |
| 95 | // Transforms the class |
| 96 | private static native void doCommonClassRedefinition(Class<?> target, |
| 97 | byte[] classfile, |
| 98 | byte[] dexfile); |
| 99 | } |