feat: support smali files (#391) (PR #588)

jadx-core/build.gradle

@@ -8,8 +8,11 @@ dependencies {
     compile 'org.ow2.asm:asm:7.1'
     compile 'org.jetbrains:annotations:17.0.0'
     compile 'uk.com.robust-it:cloning:1.9.12'
+    compile('org.smali:smali:2.2.6') {
+        exclude group: 'com.google.guava'
+    }
+    compile 'com.google.guava:guava:27.1-jre'
 
-    testCompile 'org.smali:smali:2.2.6'
     testCompile 'org.smali:baksmali:2.2.6'
 
     testCompile 'org.apache.commons:commons-lang3:3.8.1'

jadx-core/src/main/java/jadx/core/utils/files/InputFile.java

@@ -18,6 +18,8 @@ import java.util.zip.ZipFile;
 
 import org.apache.commons.io.IOUtils;
 import org.jetbrains.annotations.Nullable;
+import org.jf.smali.Smali;
+import org.jf.smali.SmaliOptions;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
@@ -54,6 +56,14 @@ public class InputFile {
 			addDexFile(new Dex(file));
 			return;
 		}
+		if (fileName.endsWith(".smali")) {
+			Path output = Files.createTempFile("jadx", ".dex");
+			SmaliOptions options = new SmaliOptions();
+			options.outputDexFile = output.toAbsolutePath().toString();
+			Smali.assemble(options, file.getAbsolutePath());
+			addDexFile(new Dex(output.toFile()));
+			return;
+		}
 		if (fileName.endsWith(".class")) {
 			for (Dex dex : loadFromClassFile(file)) {
 				addDexFile(dex);

jadx-core/src/test/java/jadx/tests/api/SmaliTest.java

@@ -91,10 +91,10 @@ public abstract class SmaliTest extends IntegrationTest {
 
 	private static boolean compileSmali(File output, List<File> inputFiles) {
 		try {
-			SmaliOptions params = new SmaliOptions();
-			params.outputDexFile = output.getAbsolutePath();
+			SmaliOptions options = new SmaliOptions();
+			options.outputDexFile = output.getAbsolutePath();
 			List<String> inputFileNames = inputFiles.stream().map(File::getAbsolutePath).collect(Collectors.toList());
-			Smali.assemble(params, inputFileNames);
+			Smali.assemble(options, inputFileNames);
 		} catch (Exception e) {
 			throw new AssertionError("Smali assemble error", e);
 		}

jadx-gui/src/main/java/jadx/gui/ui/MainWindow.java

@@ -197,7 +197,7 @@ public class MainWindow extends JFrame {
 	public void openFileOrProject() {
 		JFileChooser fileChooser = new JFileChooser();
 		fileChooser.setAcceptAllFileFilterUsed(true);
-		String[] exts = {JadxProject.PROJECT_EXTENSION, "apk", "dex", "jar", "class", "zip", "aar", "arsc"};
+		String[] exts = {JadxProject.PROJECT_EXTENSION, "apk", "dex", "jar", "class", "zip", "aar", "arsc", "smali"};
 		String description = "supported files: " + Arrays.toString(exts).replace('[', '(').replace(']', ')');
 		fileChooser.setFileFilter(new FileNameExtensionFilter(description, exts));
 		fileChooser.setToolTipText(NLS.str("file.open_action"));