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atmosphere-apk-backdoor-injector
The Android OS requires WebView debugging to be manually enabled in every Android app whose WebViews we would like to be able to debug by calling the static method setWebContentsDebuggingEnabled like this:
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
WebView.setWebContentsDebuggingEnabled(true);
}Usually the applications in production have WebView debugging disabled.
The Atmosphere APK Backdoor Injector is a tool that helps you enable WebView debugging by injecting the missing code in the APK file you provide.
Project setup
Requirements
- Android SDK - setup instructions
- Ant - setup instructions
- Java Development Kit (JDK) - setup instructions
Paths setup
Create a local.properties file in the project root directory and add the following properties:
android.executable.path=
jarsigner.path=
ant.executable.path=
android.build.tools.path=
android.executable.path should point to the android executable file in the Android SDK directory. It is usually located in [android-sdk]/tools/. Note: If there are whitespaces in the path, surround the whole path with quotes. Also, if you are on Windows, include the .bat extension. Example: "C:\\android-sdk\\tools\\android.bat"
jarsigner.path should be the path to the jarsigner executable, part of the JDK. It is located in the [jdk-directory]/bin/ Note: If there are whitespaces in the path, surround the whole path with quotes. For Windows the default path would be: "C:\\Program Files\\Java\\jdk[version]\\bin\\jarsigner.exe"
ant.executable.path should point to the Ant executable, located in [ant-directory]/bin/. If you use Windows, include the .bat extension. Example: C:\\apache-ant-1.9.7\\bin\\ant.bat
android.build.tools.path should be the path to the directory of a version of the Android SDK build-tools. If there are whitespaces in the path, quotes are not needed. Example on Windows: C:\\android-sdk\\build-tools\\23.0.3
Usage
The Atmosphere APK Backdoor Injector uses the JUnit tests in src/test to inject APK files, there is no executable. You can copy you APK file to fixtures/apk_backdoor and rename it to SimpleWebViewApplication.apk, replacing the original. Then run ./gradlew build (Linux/macOS) or gradlew build (Windows) in the project root directory. After the project builds successfully, the injected APK file should be available in fixtures/apk_backdoor with a suffix -debuggable appended to the file name.