From 2e0f7a82fad0c66e8c967f0f6f650871217de7ae Mon Sep 17 00:00:00 2001
From: topjohnwu <topjohnwu@gmail.com>
Date: Fri, 22 Jan 2021 20:45:37 -0800
Subject: [PATCH] More complete stub sources

---
 buildSrc/src/main/java/BuildSource.kt         |  1 +
 gradle.properties                             |  1 +
 stub/build.gradle.kts                         |  2 +-
 stub/src/main/AndroidManifest.xml             | 24 +++++++++-----
 stub/src/main/java/a/{e.java => Q.java}       |  3 +-
 stub/src/main/java/a/{p.java => ii.java}      |  3 +-
 stub/src/main/java/a/{h.java => r.java}       |  3 +-
 stub/src/main/java/a/{c.java => u7.java}      |  3 +-
 stub/src/main/java/a/z.java                   |  5 +++
 .../magisk/DelegateComponentFactory.java      |  9 +++---
 .../java/com/topjohnwu/magisk/InjectAPK.java  |  5 +--
 .../java/com/topjohnwu/magisk/Mapping.java    | 31 +++++++++++++++++++
 12 files changed, 65 insertions(+), 25 deletions(-)
 rename stub/src/main/java/a/{e.java => Q.java} (56%)
 rename stub/src/main/java/a/{p.java => ii.java} (57%)
 rename stub/src/main/java/a/{h.java => r.java} (60%)
 rename stub/src/main/java/a/{c.java => u7.java} (57%)
 create mode 100644 stub/src/main/java/a/z.java
 create mode 100644 stub/src/main/java/com/topjohnwu/magisk/Mapping.java

diff --git a/buildSrc/src/main/java/BuildSource.kt b/buildSrc/src/main/java/BuildSource.kt
index 2a51208c2..4f4f5517c 100644
--- a/buildSrc/src/main/java/BuildSource.kt
+++ b/buildSrc/src/main/java/BuildSource.kt
@@ -20,6 +20,7 @@ object Config {
 
     val version: String = get("version") ?: commitHash
     val versionCode: Int get() = get("magisk.versionCode")!!.toInt()
+    val stubVersion: String get() = get("magisk.stubVersion")!!
 }
 
 class MagiskPlugin : Plugin<Project> {
diff --git a/gradle.properties b/gradle.properties
index 3cae0ca57..d49dc935a 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -27,6 +27,7 @@ android.injected.testOnly=false
 kapt.incremental.apt=true
 
 # Magisk
+magisk.stubVersion=16
 magisk.versionCode=21401
 magisk.ndkVersion=21d
 magisk.fullNdkVersion=21.3.6528147
diff --git a/stub/build.gradle.kts b/stub/build.gradle.kts
index 8acd51b58..2b57f7a99 100644
--- a/stub/build.gradle.kts
+++ b/stub/build.gradle.kts
@@ -9,7 +9,7 @@ android {
         applicationId = "com.topjohnwu.magisk"
         versionCode = 1
         versionName = Config.version
-        buildConfigField("int", "STUB_VERSION", "16")
+        buildConfigField("int", "STUB_VERSION", Config.stubVersion)
         buildConfigField("String", "DEV_CHANNEL", Config["DEV_CHANNEL"] ?: "null")
         buildConfigField("boolean", "CANARY", if (canary) "true" else "false")
     }
diff --git a/stub/src/main/AndroidManifest.xml b/stub/src/main/AndroidManifest.xml
index 200f1f734..a055921ed 100644
--- a/stub/src/main/AndroidManifest.xml
+++ b/stub/src/main/AndroidManifest.xml
@@ -8,12 +8,12 @@
     <uses-permission android:name="android.permission.USE_FINGERPRINT" />
 
     <application
-        android:name="a.e"
-        android:appComponentFactory=".DelegateComponentFactory"
+        android:name="a.Q"
+        android:appComponentFactory="a.z"
         tools:ignore="GoogleAppIndexingWarning,MissingApplicationIcon,UnusedAttribute">
 
         <!-- Splash -->
-        <activity android:name="a.c">
+        <activity android:name="a.u7">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
                 <category android:name="android.intent.category.LAUNCHER" />
@@ -25,11 +25,11 @@
         </activity>
 
         <!-- Main -->
-        <activity android:name="a.b" />
+        <activity android:name="xt.R" />
 
         <!-- Superuser -->
         <activity
-            android:name="a.m"
+            android:name="lt5.a"
             android:directBootAware="true"
             android:excludeFromRecents="true"
             android:exported="false"
@@ -42,7 +42,7 @@
 
         <!-- Receiver -->
         <receiver
-            android:name="a.h"
+            android:name="a.r"
             android:directBootAware="true"
             android:exported="false">
             <intent-filter>
@@ -58,16 +58,24 @@
         </receiver>
 
         <!-- DownloadService -->
-        <service android:name="a.j" />
+        <service android:name="d.s" />
 
         <!-- FileProvider -->
         <provider
-            android:name="a.p"
+            android:name="a.ii"
             android:authorities="${applicationId}.provider"
             android:directBootAware="true"
             android:exported="false"
             android:grantUriPermissions="true" />
 
+        <!-- WorkManager -->
+        <service
+            android:name="w.d"
+            android:directBootAware="false"
+            android:enabled="true"
+            android:exported="true"
+            android:permission="android.permission.BIND_JOB_SERVICE" />
+
         <!-- Hardcode GMS version -->
         <meta-data
             android:name="com.google.android.gms.version"
diff --git a/stub/src/main/java/a/e.java b/stub/src/main/java/a/Q.java
similarity index 56%
rename from stub/src/main/java/a/e.java
rename to stub/src/main/java/a/Q.java
index cd2e45a4c..537e6615e 100644
--- a/stub/src/main/java/a/e.java
+++ b/stub/src/main/java/a/Q.java
@@ -2,5 +2,4 @@ package a;
 
 import com.topjohnwu.magisk.DelegateApplication;
 
-public class e extends DelegateApplication {
-}
+public class Q extends DelegateApplication {}
diff --git a/stub/src/main/java/a/p.java b/stub/src/main/java/a/ii.java
similarity index 57%
rename from stub/src/main/java/a/p.java
rename to stub/src/main/java/a/ii.java
index 6d7efc971..c4c6ae0a3 100644
--- a/stub/src/main/java/a/p.java
+++ b/stub/src/main/java/a/ii.java
@@ -2,5 +2,4 @@ package a;
 
 import com.topjohnwu.magisk.FileProvider;
 
-public class p extends FileProvider {
-}
+public class ii extends FileProvider {}
diff --git a/stub/src/main/java/a/h.java b/stub/src/main/java/a/r.java
similarity index 60%
rename from stub/src/main/java/a/h.java
rename to stub/src/main/java/a/r.java
index 51120d19c..919493b6a 100644
--- a/stub/src/main/java/a/h.java
+++ b/stub/src/main/java/a/r.java
@@ -2,5 +2,4 @@ package a;
 
 import com.topjohnwu.magisk.dummy.DummyReceiver;
 
-public class h extends DummyReceiver {
-}
+public class r extends DummyReceiver {}
diff --git a/stub/src/main/java/a/c.java b/stub/src/main/java/a/u7.java
similarity index 57%
rename from stub/src/main/java/a/c.java
rename to stub/src/main/java/a/u7.java
index 44b3521e1..3362a05a8 100644
--- a/stub/src/main/java/a/c.java
+++ b/stub/src/main/java/a/u7.java
@@ -2,5 +2,4 @@ package a;
 
 import com.topjohnwu.magisk.DownloadActivity;
 
-public class c extends DownloadActivity {
-}
+public class u7 extends DownloadActivity {}
diff --git a/stub/src/main/java/a/z.java b/stub/src/main/java/a/z.java
new file mode 100644
index 000000000..883e9cebb
--- /dev/null
+++ b/stub/src/main/java/a/z.java
@@ -0,0 +1,5 @@
+package a;
+
+import com.topjohnwu.magisk.DelegateComponentFactory;
+
+public class z extends DelegateComponentFactory {}
diff --git a/stub/src/main/java/com/topjohnwu/magisk/DelegateComponentFactory.java b/stub/src/main/java/com/topjohnwu/magisk/DelegateComponentFactory.java
index 7ece78d46..0eefd0995 100644
--- a/stub/src/main/java/com/topjohnwu/magisk/DelegateComponentFactory.java
+++ b/stub/src/main/java/com/topjohnwu/magisk/DelegateComponentFactory.java
@@ -37,7 +37,7 @@ public class DelegateComponentFactory extends AppComponentFactory {
     public Activity instantiateActivity(ClassLoader cl, String className, Intent intent)
             throws ClassNotFoundException, IllegalAccessException, InstantiationException {
         if (delegate != null)
-            return delegate.instantiateActivity(loader, className, intent);
+            return delegate.instantiateActivity(loader, Mapping.get(className), intent);
         return create(className, DownloadActivity::new);
     }
 
@@ -45,7 +45,7 @@ public class DelegateComponentFactory extends AppComponentFactory {
     public BroadcastReceiver instantiateReceiver(ClassLoader cl, String className, Intent intent)
             throws ClassNotFoundException, IllegalAccessException, InstantiationException {
         if (delegate != null)
-            return delegate.instantiateReceiver(loader, className, intent);
+            return delegate.instantiateReceiver(loader, Mapping.get(className), intent);
         return create(className, DummyReceiver::new);
     }
 
@@ -53,7 +53,7 @@ public class DelegateComponentFactory extends AppComponentFactory {
     public Service instantiateService(ClassLoader cl, String className, Intent intent)
             throws ClassNotFoundException, IllegalAccessException, InstantiationException {
         if (delegate != null)
-            return delegate.instantiateService(loader, className, intent);
+            return delegate.instantiateService(loader, Mapping.get(className), intent);
         return create(className, DummyService::new);
     }
 
@@ -62,7 +62,7 @@ public class DelegateComponentFactory extends AppComponentFactory {
             throws ClassNotFoundException, IllegalAccessException, InstantiationException {
         if (loader == null) loader = cl;
         if (delegate != null)
-            return delegate.instantiateProvider(loader, className);
+            return delegate.instantiateProvider(loader, Mapping.get(className));
         return create(className, DummyProvider::new);
     }
 
@@ -76,4 +76,5 @@ public class DelegateComponentFactory extends AppComponentFactory {
             return factory.create();
         }
     }
+
 }
diff --git a/stub/src/main/java/com/topjohnwu/magisk/InjectAPK.java b/stub/src/main/java/com/topjohnwu/magisk/InjectAPK.java
index 41ebbdea0..8976f8282 100644
--- a/stub/src/main/java/com/topjohnwu/magisk/InjectAPK.java
+++ b/stub/src/main/java/com/topjohnwu/magisk/InjectAPK.java
@@ -11,10 +11,8 @@ import com.topjohnwu.magisk.utils.DynamicClassLoader;
 
 import java.io.File;
 import java.io.FileOutputStream;
-import java.io.IOException;
 import java.io.InputStream;
 import java.io.OutputStream;
-import java.util.HashMap;
 
 public class InjectAPK {
 
@@ -70,8 +68,7 @@ public class InjectAPK {
     private static DynAPK.Data dynData() {
         DynAPK.Data data = new DynAPK.Data();
         data.version = BuildConfig.STUB_VERSION;
-        // Public source code does not do component name obfuscation
-        data.classToComponent = new HashMap<>();
+        data.classToComponent = Mapping.inverseMap;
         return data;
     }
 
diff --git a/stub/src/main/java/com/topjohnwu/magisk/Mapping.java b/stub/src/main/java/com/topjohnwu/magisk/Mapping.java
new file mode 100644
index 000000000..87739920f
--- /dev/null
+++ b/stub/src/main/java/com/topjohnwu/magisk/Mapping.java
@@ -0,0 +1,31 @@
+package com.topjohnwu.magisk;
+
+import java.util.HashMap;
+import java.util.Map;
+
+public class Mapping {
+
+    private static Map<String, String> map = new HashMap<>();
+    public static Map<String, String> inverseMap;
+
+    static {
+        map.put("a.Qzw", "a.e");
+        map.put("a.u7", "a.c");
+        map.put("a.ii", "a.p");
+        map.put("a.r", "a.h");
+        map.put("xt.R", "a.b");
+        map.put("lt5.a", "a.m");
+        map.put("d.s", "a.j");
+        map.put("w.d", "androidx.work.impl.background.systemjob.SystemJobService");
+
+        inverseMap = new HashMap<>(map.size());
+        for (Map.Entry<String, String> e : map.entrySet()) {
+            inverseMap.put(e.getValue(), e.getKey());
+        }
+    }
+
+    public static String get(String name) {
+        String n = map.get(name);
+        return n != null ? n : name;
+    }
+}