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Added support for opening Android App Bundle (.aab) files #551

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7db6665
removed unused param
oraveczandrew Aug 13, 2025
7ecca67
aab support
oraveczandrew Aug 13, 2025
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228 changes: 227 additions & 1 deletion pom.xml
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Original file line number Diff line number Diff line change
Expand Up @@ -7,7 +7,7 @@

<properties>
<!-- Project settings -->
<java.version>1.8</java.version>
<java.version>11</java.version>
<maven.compiler.target>${java.version}</maven.compiler.target>
<maven.compiler.source>${java.version}</maven.compiler.source>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
Expand Down Expand Up @@ -55,8 +55,130 @@
<taskmanager.version>1.0.1</taskmanager.version>
<google-java-format.version>1.7</google-java-format.version> <!-- Newer versions require Java 11+ -->
<disk-lib.version>1.2.0</disk-lib.version>
<aapt-version>8.12.0-13700139</aapt-version>
<maven-dependency-plugin>3.6.1</maven-dependency-plugin>
</properties>

<profiles>
<profile>
<id>unpack-aapt2-linux</id>
<activation>
<os>
<family>unix</family>
<name>linux</name>
</os>
</activation>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>${maven-dependency-plugin}</version>
<executions>
<execution>
<id>unpack-linux-aapt2</id>
<phase>generate-resources</phase>
<goals>
<goal>unpack</goal>
</goals>
<configuration>
<artifactItems>
<artifactItem>
<groupId>com.android.tools.build</groupId>
<artifactId>aapt2</artifactId>
<version>${aapt-version}</version>
<classifier>linux</classifier>
<type>jar</type>
<outputDirectory>${project.build.outputDirectory}/linux</outputDirectory>
</artifactItem>
</artifactItems>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</profile>

<profile>
<id>unpack-aapt2-windows</id>
<activation>
<os>
<family>windows</family>
</os>
</activation>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>${maven-dependency-plugin}</version>
<executions>
<execution>
<id>unpack-windows-aapt2</id>
<phase>generate-resources</phase>
<goals>
<goal>unpack</goal>
</goals>
<configuration>
<artifactItems>
<artifactItem>
<groupId>com.android.tools.build</groupId>
<artifactId>aapt2</artifactId>
<version>${aapt-version}</version>
<classifier>windows</classifier>
<type>jar</type>
<outputDirectory>${project.build.outputDirectory}/windows</outputDirectory>
</artifactItem>
</artifactItems>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</profile>

<profile>
<id>unpack-aapt2-macos</id>
<activation>
<os>
<family>mac</family>
</os>
</activation>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>${maven-dependency-plugin}</version>
<executions>
<execution>
<id>unpack-macos-aapt2</id>
<phase>generate-resources</phase>
<goals>
<goal>unpack</goal>
</goals>
<configuration>
<artifactItems>
<artifactItem>
<groupId>com.android.tools.build</groupId>
<artifactId>aapt2</artifactId>
<version>${aapt-version}</version>
<classifier>osx</classifier>
<type>jar</type>
<outputDirectory>${project.build.outputDirectory}/macos</outputDirectory>
</artifactItem>
</artifactItems>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
</profile>
</profiles>

<repositories>
<repository>
<id>google</id>
Expand Down Expand Up @@ -402,6 +524,24 @@
<version>${disk-lib.version}</version>
</dependency>

<dependency>
<groupId>com.android.tools.build</groupId>
<artifactId>bundletool</artifactId>
<version>1.18.1</version>
</dependency>

<dependency>
<groupId>com.android.tools.build</groupId>
<artifactId>aapt2-proto</artifactId>
<version>${aapt-version}</version>
</dependency>

<dependency>
<groupId>com.google.protobuf</groupId>
<artifactId>protobuf-java</artifactId>
<version>4.31.1</version>
</dependency>

<!-- TODO Re-add for Graal.JS support -->
<!--<dependency>
<groupId>org.graalvm.js</groupId>
Expand Down Expand Up @@ -506,6 +646,92 @@
</transformers>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-dependency-plugin</artifactId>
<version>${maven-dependency-plugin}</version>
<executions>
<execution>
<id>unpack-aapt2-windows</id>
<phase>prepare-package</phase>
<goals>
<goal>unpack</goal>
</goals>
<configuration>
<artifactItems>
<artifactItem>
<groupId>com.android.tools.build</groupId>
<artifactId>aapt2</artifactId>
<version>${aapt-version}</version>
<classifier>windows</classifier>
<type>jar</type>
<outputDirectory>${project.build.directory}/unpacked-aapt2/windows</outputDirectory>
</artifactItem>
</artifactItems>
</configuration>
</execution>
<execution>
<id>unpack-aapt2-macos</id>
<phase>prepare-package</phase>
<goals>
<goal>unpack</goal>
</goals>
<configuration>
<artifactItems>
<artifactItem>
<groupId>com.android.tools.build</groupId>
<artifactId>aapt2</artifactId>
<version>${aapt-version}</version>
<classifier>osx</classifier>
<type>jar</type>
<outputDirectory>${project.build.directory}/unpacked-aapt2/macos</outputDirectory>
</artifactItem>
</artifactItems>
</configuration>
</execution>
<execution>
<id>unpack-aapt2-linux</id>
<phase>prepare-package</phase>
<goals>
<goal>unpack</goal>
</goals>
<configuration>
<artifactItems>
<artifactItem>
<groupId>com.android.tools.build</groupId>
<artifactId>aapt2</artifactId>
<version>${aapt-version}</version>
<classifier>linux</classifier>
<type>jar</type>
<outputDirectory>${project.build.directory}/unpacked-aapt2/linux</outputDirectory>
</artifactItem>
</artifactItems>
</configuration>
</execution>
</executions>
</plugin>
<plugin>
<artifactId>maven-resources-plugin</artifactId>
<version>3.3.1</version>
<executions>
<execution>
<id>copy-unpacked-aapt2</id>
<phase>prepare-package</phase>
<goals>
<goal>copy-resources</goal>
</goals>
<configuration>
<outputDirectory>${project.build.outputDirectory}</outputDirectory>
<resources>
<resource>
<directory>${project.build.directory}/unpacked-aapt2</directory>
<!-- This will create windows/, macos/, linux/ inside the classes dir -->
</resource>
</resources>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>

Expand Down
2 changes: 1 addition & 1 deletion src/main/java/the/bytecode/club/bytecodeviewer/resources/exporting/impl/APKExport.java
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Expand Up @@ -119,7 +119,7 @@ public void promptForExport()

Thread buildAPKThread = new Thread(() ->
{
APKTool.buildAPK(new File(input), file, finalContainer);
APKTool.buildAPK(file, finalContainer);
BytecodeViewer.updateBusyStatus(false);
}, "Process APK");

Expand Down
3 changes: 2 additions & 1 deletion src/main/java/the/bytecode/club/bytecodeviewer/resources/importing/Import.java
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Expand Up @@ -37,7 +37,8 @@ public enum Import
CLASS(new ClassResourceImporter(), "class"),
XAPK(new XAPKResourceImporter(), "xapk"),
APK(new APKResourceImporter(), "apk"),
DEX(new DEXResourceImporter(), "dex");
DEX(new DEXResourceImporter(), "dex"),
AAB(new AABResourceImporter(), "aab");

public static final HashMap<String, Import> extensionMap = new HashMap<>();

Expand Down
37 changes: 37 additions & 0 deletions ...n/java/the/bytecode/club/bytecodeviewer/resources/importing/impl/AABResourceImporter.java
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@@ -0,0 +1,37 @@
package the.bytecode.club.bytecodeviewer.resources.importing.impl;

import com.android.tools.build.bundletool.commands.BuildApksCommand;
import the.bytecode.club.bytecodeviewer.resources.importing.Importer;
import the.bytecode.club.bytecodeviewer.util.MiscUtils;

import java.io.File;
import java.nio.file.Path;

import static the.bytecode.club.bytecodeviewer.Constants.FS;
import static the.bytecode.club.bytecodeviewer.Constants.TEMP_DIRECTORY;

public class AABResourceImporter implements Importer
{

@Override
public void open(File file) throws Exception
{
String randomStr = MiscUtils.randomString(32);
Path universalApksZipPath = Path.of(TEMP_DIRECTORY, randomStr + ".apks");

BuildApksCommand.builder()
.setApkBuildMode(BuildApksCommand.ApkBuildMode.UNIVERSAL)
.setGenerateOnlyForConnectedDevice(false)
.setBundlePath(file.toPath())
.setOutputFile(universalApksZipPath)
.setOutputPrintStream(System.out)
.build()
.execute();

File universalApk = new File(TEMP_DIRECTORY + FS + randomStr + "_universal.apk");

MiscUtils.extractFileFromZip(universalApksZipPath, "universal.apk", universalApk.toPath());

APKResourceImporter.openImpl(universalApk, file.getName());
}
}
13 changes: 8 additions & 5 deletions ...n/java/the/bytecode/club/bytecodeviewer/resources/importing/impl/APKResourceImporter.java
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Expand Up @@ -43,22 +43,25 @@ public void open(File file) throws Exception
File tempCopy = new File(TEMP_DIRECTORY + FS + MiscUtils.randomString(32) + ".apk");
FileUtils.copyFile(file, tempCopy);

ResourceContainer container = new ResourceContainer(tempCopy, file.getName());
openImpl(tempCopy, file.getName());
}

static void openImpl(File apkFile, String importName) throws Exception {
ResourceContainer container = new ResourceContainer(apkFile, importName);

// APK Resource Decoding Here
if (BytecodeViewer.viewer.decodeAPKResources.isSelected())
{
APKTool.decodeResources(tempCopy, container);
APKTool.decodeResources(apkFile, container);
container.resourceFiles = JarUtils.loadResourcesFromFolder(APKTool.DECODED_RESOURCES, container.APKToolContents);
}

container.resourceFiles.putAll(JarUtils.loadResources(tempCopy)); // copy and rename
container.resourceFiles.putAll(JarUtils.loadResources(apkFile)); // copy and rename
// to prevent unicode filenames

// create a new resource importer and copy the contents from it
container.copy(Apk2Jar.obtainImpl().resourceContainerFromApk(tempCopy));
container.copy(Apk2Jar.obtainImpl().resourceContainerFromApk(apkFile));

BytecodeViewer.addResourceContainer(container);
}

}
2 changes: 1 addition & 1 deletion src/main/java/the/bytecode/club/bytecodeviewer/util/APKTool.java
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Expand Up @@ -64,7 +64,7 @@ public static synchronized void decodeResources(File input, ResourceContainer co
}
}

public static synchronized void buildAPK(File input, File output, ResourceContainer container)
public static synchronized void buildAPK(File output, ResourceContainer container)
{
String temp = TEMP_DIRECTORY + FS;
File tempDir = new File(temp + FS + MiscUtils.getRandomizedName() + FS);
Expand Down
12 changes: 12 additions & 0 deletions src/main/java/the/bytecode/club/bytecodeviewer/util/MiscUtils.java
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Expand Up @@ -30,6 +30,10 @@
import java.awt.image.BufferedImage;
import java.io.*;
import java.lang.reflect.Field;
import java.nio.file.FileSystem;
import java.nio.file.FileSystems;
import java.nio.file.Files;
import java.nio.file.Path;
import java.util.*;

import static the.bytecode.club.bytecodeviewer.BytecodeViewer.gson;
Expand Down Expand Up @@ -425,4 +429,12 @@ public static File deleteExistingFile(File file)

return file;
}

public static void extractFileFromZip(Path zipFile, String fileName, Path outputFile) throws IOException
{
try (FileSystem fileSystem = FileSystems.newFileSystem(zipFile, (ClassLoader) null)) {
Path fileToExtract = fileSystem.getPath(fileName);
Files.copy(fileToExtract, outputFile);
}
}
}
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