├── app ├── .gitignore ├── src │ ├── main │ │ ├── res │ │ │ ├── values │ │ │ │ ├── strings.xml │ │ │ │ ├── colors.xml │ │ │ │ └── styles.xml │ │ │ ├── mipmap-hdpi │ │ │ │ ├── ic_launcher.png │ │ │ │ └── ic_launcher_round.png │ │ │ ├── mipmap-mdpi │ │ │ │ ├── ic_launcher.png │ │ │ │ └── ic_launcher_round.png │ │ │ ├── mipmap-xhdpi │ │ │ │ ├── ic_launcher.png │ │ │ │ └── ic_launcher_round.png │ │ │ ├── mipmap-xxhdpi │ │ │ │ ├── ic_launcher.png │ │ │ │ └── ic_launcher_round.png │ │ │ ├── mipmap-xxxhdpi │ │ │ │ ├── ic_launcher.png │ │ │ │ └── ic_launcher_round.png │ │ │ ├── mipmap-anydpi-v26 │ │ │ │ ├── ic_launcher.xml │ │ │ │ └── ic_launcher_round.xml │ │ │ ├── layout │ │ │ │ └── activity_main.xml │ │ │ ├── drawable-v24 │ │ │ │ └── ic_launcher_foreground.xml │ │ │ └── drawable │ │ │ │ └── ic_launcher_background.xml │ │ ├── java │ │ │ └── com │ │ │ │ └── tian │ │ │ │ └── hook │ │ │ │ ├── Fake.java │ │ │ │ └── MainActivity.java │ │ ├── AndroidManifest.xml │ │ └── cpp │ │ │ └── native-lib.cpp │ ├── test │ │ └── java │ │ │ └── com │ │ │ └── tian │ │ │ └── hook │ │ │ └── ExampleUnitTest.java │ └── androidTest │ │ └── java │ │ └── com │ │ └── tian │ │ └── hook │ │ └── ExampleInstrumentedTest.java ├── proguard-rules.pro ├── build.gradle └── CMakeLists.txt ├── settings.gradle ├── gradle └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── .gitignore ├── README.md ├── gradle.properties ├── gradlew.bat └── gradlew /app/.gitignore: -------------------------------------------------------------------------------- 1 | /build 2 | -------------------------------------------------------------------------------- /settings.gradle: -------------------------------------------------------------------------------- 1 | include ':app' 2 | -------------------------------------------------------------------------------- /app/src/main/res/values/strings.xml: -------------------------------------------------------------------------------- 1 | 2 | AndroidJavaHook 3 | 4 | -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.jar: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/ketn4391/android_java_method_hook/HEAD/gradle/wrapper/gradle-wrapper.jar -------------------------------------------------------------------------------- /app/src/main/res/mipmap-hdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/ketn4391/android_java_method_hook/HEAD/app/src/main/res/mipmap-hdpi/ic_launcher.png -------------------------------------------------------------------------------- /app/src/main/res/mipmap-mdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/ketn4391/android_java_method_hook/HEAD/app/src/main/res/mipmap-mdpi/ic_launcher.png -------------------------------------------------------------------------------- /app/src/main/res/mipmap-xhdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/ketn4391/android_java_method_hook/HEAD/app/src/main/res/mipmap-xhdpi/ic_launcher.png -------------------------------------------------------------------------------- /app/src/main/res/mipmap-xxhdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/ketn4391/android_java_method_hook/HEAD/app/src/main/res/mipmap-xxhdpi/ic_launcher.png -------------------------------------------------------------------------------- /app/src/main/res/mipmap-xxxhdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/ketn4391/android_java_method_hook/HEAD/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png -------------------------------------------------------------------------------- /app/src/main/res/mipmap-hdpi/ic_launcher_round.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/ketn4391/android_java_method_hook/HEAD/app/src/main/res/mipmap-hdpi/ic_launcher_round.png -------------------------------------------------------------------------------- /app/src/main/res/mipmap-mdpi/ic_launcher_round.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/ketn4391/android_java_method_hook/HEAD/app/src/main/res/mipmap-mdpi/ic_launcher_round.png -------------------------------------------------------------------------------- /app/src/main/res/mipmap-xhdpi/ic_launcher_round.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/ketn4391/android_java_method_hook/HEAD/app/src/main/res/mipmap-xhdpi/ic_launcher_round.png -------------------------------------------------------------------------------- /app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/ketn4391/android_java_method_hook/HEAD/app/src/main/res/mipmap-xxhdpi/ic_launcher_round.png -------------------------------------------------------------------------------- /app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/ketn4391/android_java_method_hook/HEAD/app/src/main/res/mipmap-xxxhdpi/ic_launcher_round.png -------------------------------------------------------------------------------- /.gitignore: -------------------------------------------------------------------------------- 1 | *.iml 2 | .gradle 3 | .idea 4 | /local.properties 5 | /.idea/workspace.xml 6 | /.idea/libraries 7 | .DS_Store 8 | /build 9 | /captures 10 | .externalNativeBuild 11 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # android_java_method_hook 2 | A smart way to hook Java method on android art platform with just a few code. 3 | 4 | So far, the code is tested on android api 21, 22, 23, and it works well. 5 | Will support it api 24, 25, ... later. 6 | -------------------------------------------------------------------------------- /app/src/main/res/values/colors.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | #3F51B5 4 | #303F9F 5 | #FF4081 6 | 7 | -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.properties: -------------------------------------------------------------------------------- 1 | #Tue Feb 13 11:37:08 CST 2018 2 | distributionBase=GRADLE_USER_HOME 3 | distributionPath=wrapper/dists 4 | zipStoreBase=GRADLE_USER_HOME 5 | zipStorePath=wrapper/dists 6 | distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip 7 | -------------------------------------------------------------------------------- /app/src/main/java/com/tian/hook/Fake.java: -------------------------------------------------------------------------------- 1 | package com.tian.hook; 2 | 3 | import android.content.pm.PackageInfo; 4 | 5 | /** 6 | * Created by tian.ke on 2018/2/13. 7 | */ 8 | 9 | public class Fake { 10 | public native PackageInfo getPackageInfo(String packageName, int flags); 11 | } 12 | -------------------------------------------------------------------------------- /app/src/main/res/mipmap-anydpi-v26/ic_launcher.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | -------------------------------------------------------------------------------- /app/src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | -------------------------------------------------------------------------------- /app/src/main/res/values/styles.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 10 | 11 | 12 | -------------------------------------------------------------------------------- /app/src/test/java/com/tian/hook/ExampleUnitTest.java: -------------------------------------------------------------------------------- 1 | package com.tian.hook; 2 | 3 | import org.junit.Test; 4 | 5 | import static org.junit.Assert.*; 6 | 7 | /** 8 | * Example local unit test, which will execute on the development machine (host). 9 | * 10 | * @see Testing documentation 11 | */ 12 | public class ExampleUnitTest { 13 | @Test 14 | public void addition_isCorrect() throws Exception { 15 | assertEquals(4, 2 + 2); 16 | } 17 | } -------------------------------------------------------------------------------- /app/src/main/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 2 | 4 | 5 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | -------------------------------------------------------------------------------- /app/proguard-rules.pro: -------------------------------------------------------------------------------- 1 | # Add project specific ProGuard rules here. 2 | # You can control the set of applied configuration files using the 3 | # proguardFiles setting in build.gradle. 4 | # 5 | # For more details, see 6 | # http://developer.android.com/guide/developing/tools/proguard.html 7 | 8 | # If your project uses WebView with JS, uncomment the following 9 | # and specify the fully qualified class name to the JavaScript interface 10 | # class: 11 | #-keepclassmembers class fqcn.of.javascript.interface.for.webview { 12 | # public *; 13 | #} 14 | 15 | # Uncomment this to preserve the line number information for 16 | # debugging stack traces. 17 | #-keepattributes SourceFile,LineNumberTable 18 | 19 | # If you keep the line number information, uncomment this to 20 | # hide the original source file name. 21 | #-renamesourcefileattribute SourceFile 22 | -------------------------------------------------------------------------------- /gradle.properties: -------------------------------------------------------------------------------- 1 | ## Project-wide Gradle settings. 2 | # 3 | # For more details on how to configure your build environment visit 4 | # http://www.gradle.org/docs/current/userguide/build_environment.html 5 | # 6 | # Specifies the JVM arguments used for the daemon process. 7 | # The setting is particularly useful for tweaking memory settings. 8 | # Default value: -Xmx1024m -XX:MaxPermSize=256m 9 | # org.gradle.jvmargs=-Xmx2048m -XX:MaxPermSize=512m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8 10 | # 11 | # When configured, Gradle will run in incubating parallel mode. 12 | # This option should only be used with decoupled projects. More details, visit 13 | # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects 14 | # org.gradle.parallel=true 15 | #Tue Feb 13 11:37:18 CST 2018 16 | org.gradle.jvmargs=-Xmx1536m 17 | -------------------------------------------------------------------------------- /app/src/androidTest/java/com/tian/hook/ExampleInstrumentedTest.java: -------------------------------------------------------------------------------- 1 | package com.tian.hook; 2 | 3 | import android.content.Context; 4 | import android.support.test.InstrumentationRegistry; 5 | import android.support.test.runner.AndroidJUnit4; 6 | 7 | import org.junit.Test; 8 | import org.junit.runner.RunWith; 9 | 10 | import static org.junit.Assert.*; 11 | 12 | /** 13 | * Instrumented test, which will execute on an Android device. 14 | * 15 | * @see Testing documentation 16 | */ 17 | @RunWith(AndroidJUnit4.class) 18 | public class ExampleInstrumentedTest { 19 | @Test 20 | public void useAppContext() throws Exception { 21 | // Context of the app under test. 22 | Context appContext = InstrumentationRegistry.getTargetContext(); 23 | 24 | assertEquals("com.tian.hook", appContext.getPackageName()); 25 | } 26 | } 27 | -------------------------------------------------------------------------------- /app/src/main/res/layout/activity_main.xml: -------------------------------------------------------------------------------- 1 | 2 | 8 | 9 | 18 | 19 | 20 | -------------------------------------------------------------------------------- /app/src/main/java/com/tian/hook/MainActivity.java: -------------------------------------------------------------------------------- 1 | package com.tian.hook; 2 | 3 | import android.content.pm.PackageInfo; 4 | import android.content.pm.PackageManager; 5 | import android.support.v7.app.AppCompatActivity; 6 | import android.os.Bundle; 7 | import android.widget.TextView; 8 | 9 | public class MainActivity extends AppCompatActivity { 10 | 11 | // Used to load the 'native-lib' library on application startup. 12 | static { 13 | System.loadLibrary("native-lib"); 14 | } 15 | 16 | @Override 17 | protected void onCreate(Bundle savedInstanceState) { 18 | super.onCreate(savedInstanceState); 19 | setContentView(R.layout.activity_main); 20 | 21 | try { 22 | PackageInfo pkgInfo = getPackageManager().getPackageInfo(MainActivity.this.getPackageName(), PackageManager.GET_SIGNATURES); 23 | TextView tv = findViewById(R.id.sample_text); 24 | tv.setText(pkgInfo.packageName); 25 | } catch (PackageManager.NameNotFoundException e) { 26 | e.printStackTrace(); 27 | } 28 | } 29 | } 30 | -------------------------------------------------------------------------------- /app/build.gradle: -------------------------------------------------------------------------------- 1 | apply plugin: 'com.android.application' 2 | 3 | android { 4 | compileSdkVersion 26 5 | defaultConfig { 6 | applicationId "com.tian.hook" 7 | minSdkVersion 21 8 | targetSdkVersion 26 9 | versionCode 1 10 | versionName "1.0" 11 | testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner" 12 | externalNativeBuild { 13 | cmake { 14 | cppFlags "-frtti -fexceptions -ldl -llog -std=c++11" 15 | } 16 | } 17 | 18 | ndk { 19 | abiFilters "armeabi-v7a" 20 | } 21 | } 22 | buildTypes { 23 | release { 24 | minifyEnabled false 25 | proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' 26 | } 27 | } 28 | externalNativeBuild { 29 | cmake { 30 | path "CMakeLists.txt" 31 | } 32 | } 33 | } 34 | 35 | dependencies { 36 | implementation fileTree(dir: 'libs', include: ['*.jar']) 37 | implementation 'com.android.support:appcompat-v7:26.1.0' 38 | implementation 'com.android.support.constraint:constraint-layout:1.0.2' 39 | testImplementation 'junit:junit:4.12' 40 | androidTestImplementation 'com.android.support.test:runner:1.0.1' 41 | androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1' 42 | } 43 | -------------------------------------------------------------------------------- /app/CMakeLists.txt: -------------------------------------------------------------------------------- 1 | # For more information about using CMake with Android Studio, read the 2 | # documentation: https://d.android.com/studio/projects/add-native-code.html 3 | 4 | # Sets the minimum version of CMake required to build the native library. 5 | 6 | cmake_minimum_required(VERSION 3.4.1) 7 | 8 | # Creates and names a library, sets it as either STATIC 9 | # or SHARED, and provides the relative paths to its source code. 10 | # You can define multiple libraries, and CMake builds them for you. 11 | # Gradle automatically packages shared libraries with your APK. 12 | 13 | add_library( # Sets the name of the library. 14 | native-lib 15 | 16 | # Sets the library as a shared library. 17 | SHARED 18 | 19 | # Provides a relative path to your source file(s). 20 | src/main/cpp/native-lib.cpp ) 21 | 22 | # Searches for a specified prebuilt library and stores the path as a 23 | # variable. Because CMake includes system libraries in the search path by 24 | # default, you only need to specify the name of the public NDK library 25 | # you want to add. CMake verifies that the library exists before 26 | # completing its build. 27 | 28 | find_library( # Sets the name of the path variable. 29 | log-lib 30 | 31 | # Specifies the name of the NDK library that 32 | # you want CMake to locate. 33 | log ) 34 | 35 | # Specifies libraries CMake should link to your target library. You 36 | # can link multiple libraries, such as libraries you define in this 37 | # build script, prebuilt third-party libraries, or system libraries. 38 | 39 | target_link_libraries( # Specifies the target library. 40 | native-lib 41 | 42 | # Links the target library to the log library 43 | # included in the NDK. 44 | ${log-lib} ) -------------------------------------------------------------------------------- /app/src/main/res/drawable-v24/ic_launcher_foreground.xml: -------------------------------------------------------------------------------- 1 | 7 | 12 | 13 | 19 | 22 | 25 | 26 | 27 | 28 | 34 | 35 | -------------------------------------------------------------------------------- /gradlew.bat: -------------------------------------------------------------------------------- 1 | @if "%DEBUG%" == "" @echo off 2 | @rem ########################################################################## 3 | @rem 4 | @rem Gradle startup script for Windows 5 | @rem 6 | @rem ########################################################################## 7 | 8 | @rem Set local scope for the variables with windows NT shell 9 | if "%OS%"=="Windows_NT" setlocal 10 | 11 | @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 12 | set DEFAULT_JVM_OPTS= 13 | 14 | set DIRNAME=%~dp0 15 | if "%DIRNAME%" == "" set DIRNAME=. 16 | set APP_BASE_NAME=%~n0 17 | set APP_HOME=%DIRNAME% 18 | 19 | @rem Find java.exe 20 | if defined JAVA_HOME goto findJavaFromJavaHome 21 | 22 | set JAVA_EXE=java.exe 23 | %JAVA_EXE% -version >NUL 2>&1 24 | if "%ERRORLEVEL%" == "0" goto init 25 | 26 | echo. 27 | echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 28 | echo. 29 | echo Please set the JAVA_HOME variable in your environment to match the 30 | echo location of your Java installation. 31 | 32 | goto fail 33 | 34 | :findJavaFromJavaHome 35 | set JAVA_HOME=%JAVA_HOME:"=% 36 | set JAVA_EXE=%JAVA_HOME%/bin/java.exe 37 | 38 | if exist "%JAVA_EXE%" goto init 39 | 40 | echo. 41 | echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 42 | echo. 43 | echo Please set the JAVA_HOME variable in your environment to match the 44 | echo location of your Java installation. 45 | 46 | goto fail 47 | 48 | :init 49 | @rem Get command-line arguments, handling Windowz variants 50 | 51 | if not "%OS%" == "Windows_NT" goto win9xME_args 52 | if "%@eval[2+2]" == "4" goto 4NT_args 53 | 54 | :win9xME_args 55 | @rem Slurp the command line arguments. 56 | set CMD_LINE_ARGS= 57 | set _SKIP=2 58 | 59 | :win9xME_args_slurp 60 | if "x%~1" == "x" goto execute 61 | 62 | set CMD_LINE_ARGS=%* 63 | goto execute 64 | 65 | :4NT_args 66 | @rem Get arguments from the 4NT Shell from JP Software 67 | set CMD_LINE_ARGS=%$ 68 | 69 | :execute 70 | @rem Setup the command line 71 | 72 | set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar 73 | 74 | @rem Execute Gradle 75 | "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS% 76 | 77 | :end 78 | @rem End local scope for the variables with windows NT shell 79 | if "%ERRORLEVEL%"=="0" goto mainEnd 80 | 81 | :fail 82 | rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of 83 | rem the _cmd.exe /c_ return code! 84 | if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1 85 | exit /b 1 86 | 87 | :mainEnd 88 | if "%OS%"=="Windows_NT" endlocal 89 | 90 | :omega 91 | -------------------------------------------------------------------------------- /gradlew: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env bash 2 | 3 | ############################################################################## 4 | ## 5 | ## Gradle start up script for UN*X 6 | ## 7 | ############################################################################## 8 | 9 | # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 10 | DEFAULT_JVM_OPTS="" 11 | 12 | APP_NAME="Gradle" 13 | APP_BASE_NAME=`basename "$0"` 14 | 15 | # Use the maximum available, or set MAX_FD != -1 to use that value. 16 | MAX_FD="maximum" 17 | 18 | warn ( ) { 19 | echo "$*" 20 | } 21 | 22 | die ( ) { 23 | echo 24 | echo "$*" 25 | echo 26 | exit 1 27 | } 28 | 29 | # OS specific support (must be 'true' or 'false'). 30 | cygwin=false 31 | msys=false 32 | darwin=false 33 | case "`uname`" in 34 | CYGWIN* ) 35 | cygwin=true 36 | ;; 37 | Darwin* ) 38 | darwin=true 39 | ;; 40 | MINGW* ) 41 | msys=true 42 | ;; 43 | esac 44 | 45 | # Attempt to set APP_HOME 46 | # Resolve links: $0 may be a link 47 | PRG="$0" 48 | # Need this for relative symlinks. 49 | while [ -h "$PRG" ] ; do 50 | ls=`ls -ld "$PRG"` 51 | link=`expr "$ls" : '.*-> \(.*\)$'` 52 | if expr "$link" : '/.*' > /dev/null; then 53 | PRG="$link" 54 | else 55 | PRG=`dirname "$PRG"`"/$link" 56 | fi 57 | done 58 | SAVED="`pwd`" 59 | cd "`dirname \"$PRG\"`/" >/dev/null 60 | APP_HOME="`pwd -P`" 61 | cd "$SAVED" >/dev/null 62 | 63 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar 64 | 65 | # Determine the Java command to use to start the JVM. 66 | if [ -n "$JAVA_HOME" ] ; then 67 | if [ -x "$JAVA_HOME/jre/sh/java" ] ; then 68 | # IBM's JDK on AIX uses strange locations for the executables 69 | JAVACMD="$JAVA_HOME/jre/sh/java" 70 | else 71 | JAVACMD="$JAVA_HOME/bin/java" 72 | fi 73 | if [ ! -x "$JAVACMD" ] ; then 74 | die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME 75 | 76 | Please set the JAVA_HOME variable in your environment to match the 77 | location of your Java installation." 78 | fi 79 | else 80 | JAVACMD="java" 81 | which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 82 | 83 | Please set the JAVA_HOME variable in your environment to match the 84 | location of your Java installation." 85 | fi 86 | 87 | # Increase the maximum file descriptors if we can. 88 | if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then 89 | MAX_FD_LIMIT=`ulimit -H -n` 90 | if [ $? -eq 0 ] ; then 91 | if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then 92 | MAX_FD="$MAX_FD_LIMIT" 93 | fi 94 | ulimit -n $MAX_FD 95 | if [ $? -ne 0 ] ; then 96 | warn "Could not set maximum file descriptor limit: $MAX_FD" 97 | fi 98 | else 99 | warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT" 100 | fi 101 | fi 102 | 103 | # For Darwin, add options to specify how the application appears in the dock 104 | if $darwin; then 105 | GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\"" 106 | fi 107 | 108 | # For Cygwin, switch paths to Windows format before running java 109 | if $cygwin ; then 110 | APP_HOME=`cygpath --path --mixed "$APP_HOME"` 111 | CLASSPATH=`cygpath --path --mixed "$CLASSPATH"` 112 | JAVACMD=`cygpath --unix "$JAVACMD"` 113 | 114 | # We build the pattern for arguments to be converted via cygpath 115 | ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null` 116 | SEP="" 117 | for dir in $ROOTDIRSRAW ; do 118 | ROOTDIRS="$ROOTDIRS$SEP$dir" 119 | SEP="|" 120 | done 121 | OURCYGPATTERN="(^($ROOTDIRS))" 122 | # Add a user-defined pattern to the cygpath arguments 123 | if [ "$GRADLE_CYGPATTERN" != "" ] ; then 124 | OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)" 125 | fi 126 | # Now convert the arguments - kludge to limit ourselves to /bin/sh 127 | i=0 128 | for arg in "$@" ; do 129 | CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -` 130 | CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option 131 | 132 | if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition 133 | eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"` 134 | else 135 | eval `echo args$i`="\"$arg\"" 136 | fi 137 | i=$((i+1)) 138 | done 139 | case $i in 140 | (0) set -- ;; 141 | (1) set -- "$args0" ;; 142 | (2) set -- "$args0" "$args1" ;; 143 | (3) set -- "$args0" "$args1" "$args2" ;; 144 | (4) set -- "$args0" "$args1" "$args2" "$args3" ;; 145 | (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;; 146 | (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;; 147 | (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;; 148 | (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;; 149 | (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;; 150 | esac 151 | fi 152 | 153 | # Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules 154 | function splitJvmOpts() { 155 | JVM_OPTS=("$@") 156 | } 157 | eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS 158 | JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME" 159 | 160 | exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@" 161 | -------------------------------------------------------------------------------- /app/src/main/res/drawable/ic_launcher_background.xml: -------------------------------------------------------------------------------- 1 | 2 | 7 | 10 | 15 | 20 | 25 | 30 | 35 | 40 | 45 | 50 | 55 | 60 | 65 | 70 | 75 | 80 | 85 | 90 | 95 | 100 | 105 | 110 | 115 | 120 | 125 | 130 | 135 | 140 | 145 | 150 | 155 | 160 | 165 | 170 | 171 | -------------------------------------------------------------------------------- /app/src/main/cpp/native-lib.cpp: -------------------------------------------------------------------------------- 1 | #include 2 | #include 3 | #include 4 | #include 5 | 6 | static jobject fake_class = NULL; 7 | 8 | static constexpr uint32_t kAccPublic = 0x0001; // class, field, method, ic 9 | static constexpr uint32_t kAccPrivate = 0x0002; // field, method, ic 10 | static constexpr uint32_t kAccNative = 0x0100; // method 11 | 12 | void hookJavaMethod(JNIEnv *env, const char *className, 13 | const char *funcName, 14 | const char *funcSig, 15 | void *handleFunc, 16 | jclass fake_class, 17 | bool isStatic, 18 | int apiLevel) { 19 | jclass clazz = env->FindClass(className); 20 | if (env->ExceptionCheck()) { 21 | env->ExceptionDescribe(); 22 | env->ExceptionClear(); 23 | return; 24 | } 25 | 26 | jmethodID methodID = NULL; 27 | if (isStatic) { 28 | methodID = env->GetStaticMethodID(clazz, funcName, funcSig); 29 | } else { 30 | methodID = env->GetMethodID(clazz, funcName, funcSig); 31 | } 32 | 33 | if (env->ExceptionCheck()) { 34 | env->ExceptionDescribe(); 35 | env->ExceptionClear(); 36 | return; 37 | } 38 | 39 | void *artMethod = reinterpret_cast(methodID); 40 | 41 | jmethodID jmethodID1 = env->GetMethodID(fake_class, funcName, funcSig); 42 | 43 | if (env->ExceptionCheck()) { 44 | env->ExceptionDescribe(); 45 | env->ExceptionClear(); 46 | return; 47 | } 48 | 49 | void *copyArtMethod = reinterpret_cast(jmethodID1); 50 | 51 | if (apiLevel == 21) { 52 | const int32_t entry_offset = 40; 53 | void *entry_raw_addr = (void *) (reinterpret_cast(copyArtMethod) + entry_offset); 54 | void **entry_addr = reinterpret_cast(entry_raw_addr); 55 | void *entry = *entry_addr; 56 | 57 | size_t len = 72; 58 | memcpy(copyArtMethod, artMethod, len); 59 | 60 | uint8_t *flags_raw_addr = reinterpret_cast(copyArtMethod); 61 | int32_t *flags_addr = reinterpret_cast(flags_raw_addr + 56); 62 | *flags_addr = (*flags_addr | kAccPrivate); 63 | 64 | flags_raw_addr = reinterpret_cast(artMethod); 65 | flags_addr = reinterpret_cast(flags_raw_addr + 56); 66 | *flags_addr = (*flags_addr | kAccNative); 67 | 68 | entry_raw_addr = (void *) (reinterpret_cast(artMethod) + entry_offset); 69 | entry_addr = reinterpret_cast(entry_raw_addr); 70 | *entry_addr = entry; 71 | 72 | int offset = 32; 73 | void *raw_addr = (void *) (reinterpret_cast(artMethod) + offset); 74 | void **addr = reinterpret_cast(raw_addr); 75 | *addr = handleFunc; 76 | } else if (apiLevel == 22) { 77 | const int32_t entry_offset = 44; 78 | void *entry_raw_addr = (void *) (reinterpret_cast(copyArtMethod) + entry_offset); 79 | void **entry_addr = reinterpret_cast(entry_raw_addr); 80 | void *entry = *entry_addr; 81 | 82 | size_t len = 48; 83 | memcpy(copyArtMethod, artMethod, len); 84 | 85 | uint8_t *flags_raw_addr = reinterpret_cast(copyArtMethod); 86 | int32_t *flags_addr = reinterpret_cast(flags_raw_addr + 20); 87 | *flags_addr = (*flags_addr | kAccPrivate); 88 | 89 | flags_raw_addr = reinterpret_cast(artMethod); 90 | flags_addr = reinterpret_cast(flags_raw_addr + 20); 91 | *flags_addr = (*flags_addr | kAccNative); 92 | 93 | entry_raw_addr = (void *) (reinterpret_cast(artMethod) + entry_offset); 94 | entry_addr = reinterpret_cast(entry_raw_addr); 95 | *entry_addr = entry; 96 | 97 | int offset = 40; 98 | void *raw_addr = (void *) (reinterpret_cast(artMethod) + offset); 99 | void **addr = reinterpret_cast(raw_addr); 100 | *addr = handleFunc; 101 | } else if (apiLevel == 23) { 102 | const int32_t entry_offset = 36; 103 | void *entry_raw_addr = (void *) (reinterpret_cast(copyArtMethod) + entry_offset); 104 | void **entry_addr = reinterpret_cast(entry_raw_addr); 105 | void *entry = *entry_addr; 106 | 107 | size_t len = 40; 108 | memcpy(copyArtMethod, artMethod, len); 109 | 110 | uint8_t *flags_raw_addr = reinterpret_cast(copyArtMethod); 111 | int32_t *flags_addr = reinterpret_cast(flags_raw_addr + 12); 112 | *flags_addr = (*flags_addr | kAccPrivate); 113 | 114 | flags_raw_addr = reinterpret_cast(artMethod); 115 | flags_addr = reinterpret_cast(flags_raw_addr + 12); 116 | *flags_addr = (*flags_addr | kAccNative); 117 | 118 | entry_raw_addr = (void *) (reinterpret_cast(artMethod) + entry_offset); 119 | entry_addr = reinterpret_cast(entry_raw_addr); 120 | *entry_addr = entry; 121 | 122 | int offset = 32; 123 | void *raw_addr = (void *) (reinterpret_cast(artMethod) + offset); 124 | void **addr = reinterpret_cast(raw_addr); 125 | *addr = handleFunc; 126 | } else { 127 | // TODO support it later. 128 | } 129 | } 130 | 131 | typedef int (SystemPropertyGetFunction)(const char*, char*); 132 | static int getApiLevel(void) { 133 | int ret = 21; // default 134 | 135 | void* handle = dlopen("libc.so", RTLD_LAZY); 136 | if (!handle) { 137 | return ret; 138 | } 139 | 140 | SystemPropertyGetFunction* real_system_property_get = reinterpret_cast(dlsym(handle, "__system_property_get")); 141 | if (!real_system_property_get) { 142 | return ret; 143 | } 144 | 145 | char value[8] = {0}; 146 | real_system_property_get("ro.build.version.sdk", value); 147 | 148 | char* end = NULL; 149 | long v = strtol(value, &end, 10); 150 | if (end && *end == '\0' && v == (int)v) { 151 | ret = (int)v; 152 | } 153 | 154 | return ret; 155 | 156 | } 157 | 158 | jobject getPackageInfo(JNIEnv *env, jobject thiz, jstring packageName, jint flags) { 159 | jmethodID getPackageInfo_methodID = env->GetMethodID((jclass)fake_class, "getPackageInfo", "(Ljava/lang/String;I)Landroid/content/pm/PackageInfo;"); 160 | jobject obj = env->CallObjectMethod(thiz, getPackageInfo_methodID, packageName, flags); 161 | jclass pkgInfoClass = env->GetObjectClass(obj); 162 | jfieldID jfieldID1 = env->GetFieldID(pkgInfoClass, "packageName", "Ljava/lang/String;"); 163 | env->SetObjectField(obj, jfieldID1, env->NewStringUTF("it's been hooked!")); 164 | return obj; 165 | } 166 | 167 | JNIEXPORT jint JNI_OnLoad(JavaVM *vm, void *reserved) { 168 | JNIEnv* env; 169 | if (vm->GetEnv(reinterpret_cast(&env), JNI_VERSION_1_6) != JNI_OK) { 170 | return -1; 171 | } 172 | 173 | fake_class = env->NewGlobalRef(env->FindClass("com/tian/hook/Fake")); 174 | hookJavaMethod(env, "android/app/ApplicationPackageManager", "getPackageInfo", "(Ljava/lang/String;I)Landroid/content/pm/PackageInfo;", 175 | (void*)getPackageInfo, (jclass)fake_class, false, getApiLevel()); 176 | return JNI_VERSION_1_6; 177 | } 178 | --------------------------------------------------------------------------------