Make optional using source file name as alias for class name (some obfuscator

set the source file property with wrong value and break deobfuscation)
default: disabled

jadx-cli/src/main/java/jadx/cli/JadxCLIArgs.java

@@ -64,6 +64,9 @@ public class JadxCLIArgs implements IJadxArgs {
 	@Parameter(names = {"--deobf-rewrite-cfg"}, description = "force to save deobfuscation map")
 	protected boolean deobfuscationForceSave = false;
 
+	@Parameter(names = {"--deobf-use-sourcename"}, description = "use source file name as class name alias")
+	protected boolean deobfuscationUseSourceNameAsAlias = false;
+
 	@Parameter(names = {"-h", "--help"}, description = "print this help", help = true)
 	protected boolean printHelp = false;
 
@@ -242,4 +245,9 @@ public class JadxCLIArgs implements IJadxArgs {
 	public boolean isDeobfuscationForceSave() {
 		return deobfuscationForceSave;
 	}
+
+	@Override
+	public boolean useSourceNameAsClassAlias() {
+		return deobfuscationUseSourceNameAsAlias;
+	}
 }

jadx-core/src/main/java/jadx/api/DefaultJadxArgs.java

@@ -68,4 +68,9 @@ public class DefaultJadxArgs implements IJadxArgs {
 	public boolean isDeobfuscationForceSave() {
 		return false;
 	}
+
+	@Override
+	public boolean useSourceNameAsClassAlias() {
+		return false;
+	}
 }

jadx-core/src/main/java/jadx/api/IJadxArgs.java

@@ -28,4 +28,6 @@ public interface IJadxArgs {
 	int getDeobfuscationMaxLength();
 
 	boolean isDeobfuscationForceSave();
+
+	boolean useSourceNameAsClassAlias();
 }

jadx-core/src/main/java/jadx/core/deobf/Deobfuscator.java

@@ -45,6 +45,8 @@ public class Deobfuscator {
 
 	private final int maxLength;
 	private final int minLength;
+	private final boolean useSourceNameAsAlias;
+
 	private int pkgIndex = 0;
 	private int clsIndex = 0;
 	private int fldIndex = 0;
@@ -56,6 +58,7 @@ public class Deobfuscator {
 
 		this.minLength = args.getDeobfuscationMinLength();
 		this.maxLength = args.getDeobfuscationMaxLength();
+		this.useSourceNameAsAlias = args.useSourceNameAsClassAlias();
 
 		this.deobfPresets = new DeobfPresets(this, deobfMapFile);
 	}
@@ -212,7 +215,12 @@ public class Deobfuscator {
 
 	private String makeClsAlias(ClassNode cls) {
 		ClassInfo classInfo = cls.getClassInfo();
-		String alias = getAliasFromSourceFile(cls);
+		String alias = null;
+
+		if (this.useSourceNameAsAlias) {
+			alias = getAliasFromSourceFile(cls);
+		}
+
 		if (alias == null) {
 			String clsName = classInfo.getShortName();
 			alias = String.format("C%04d%s", clsIndex++, makeName(clsName));

jadx-gui/src/main/java/jadx/gui/settings/JadxSettings.java

@@ -132,6 +132,10 @@ public class JadxSettings extends JadxCLIArgs {
 		this.deobfuscationForceSave = deobfuscationForceSave;
 	}
 
+	public void setUseSourceNameAsClassAlias(boolean useSourceNameAsAlias) {
+		this.deobfuscationUseSourceNameAsAlias = useSourceNameAsAlias;
+	}
+
 	public Font getFont() {
 		if (fontStr.isEmpty()) {
 			return DEFAULT_FONT;

jadx-gui/src/main/java/jadx/gui/settings/JadxSettingsWindow.java

@@ -141,11 +141,21 @@ public class JadxSettingsWindow extends JDialog {
 			}
 		});
 
+		JCheckBox deobfSourceAlias = new JCheckBox();
+		deobfSourceAlias.setSelected(settings.useSourceNameAsClassAlias());
+		deobfSourceAlias.addItemListener(new ItemListener() {
+			public void itemStateChanged(ItemEvent e) {
+				settings.setUseSourceNameAsClassAlias(e.getStateChange() == ItemEvent.SELECTED);
+				needReload();
+			}
+		});
+
 		SettingsGroup deobfGroup = new SettingsGroup(NLS.str("preferences.deobfuscation"));
 		deobfGroup.addRow(NLS.str("preferences.deobfuscation_on"), deobfOn);
 		deobfGroup.addRow(NLS.str("preferences.deobfuscation_force"), deobfForce);
 		deobfGroup.addRow(NLS.str("preferences.deobfuscation_min_len"), minLen);
 		deobfGroup.addRow(NLS.str("preferences.deobfuscation_max_len"), maxLen);
+		deobfGroup.addRow(NLS.str("preferences.deobfuscation_source_alias"), deobfSourceAlias);
 		deobfGroup.end();
 		return deobfGroup;
 	}

jadx-gui/src/main/resources/i18n/Messages_en_US.properties

@@ -62,6 +62,7 @@ preferences.deobfuscation_on=Enable deobfuscation
 preferences.deobfuscation_force=Force rewrite deobfuscation map file
 preferences.deobfuscation_min_len=Minimum name length
 preferences.deobfuscation_max_len=Maximum name length
+preferences.deobfuscation_source_alias=Use source file name as class name alias
 preferences.save=Save
 preferences.cancel=Cancel