fix(script): add example script for resources rename (#2126)

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

@@ -62,6 +62,10 @@ public String getDeobfName() {
 		return deobfName != null ? deobfName : name;
 	}
 
+	public void setDeobfName(String resFullName) {
+		this.deobfName = resFullName;
+	}
+
 	public ResourceType getType() {
 		return type;
 	}
@@ -84,7 +88,7 @@ public boolean setAlias(ResourceEntry ri) {
 		}
 		String alias = sb.toString();
 		if (!alias.equals(name)) {
-			deobfName = alias;
+			setDeobfName(alias);
 			return true;
 		}
 		return false;

jadx-plugins/jadx-script/examples/scripts/deobf/deobf-resources.jadx.kts

@@ -0,0 +1,34 @@
+import jadx.api.plugins.options.OptionFlag.PER_PROJECT
+
+/**
+ * Custom resources regexp deobfuscator
+ */
+
+val jadx = getJadxInstance()
+
+val regexOpt = jadx.options.registerString(
+	name = "regex",
+	desc = "Apply resources rename for file names matches regex",
+	defaultValue = """[Oo0]+\.xml""",
+).flags(PER_PROJECT)
+
+val regex = regexOpt.value.toRegex()
+var n = 0
+
+jadx.stages.prepare {
+	for (resFile in jadx.internalDecompiler.resources) {
+		val fullName = resFile.originalName
+		val name = fullName.substringAfterLast('/')
+		if (name matches regex) {
+			val path = fullName.substringBeforeLast('/') // TODO: path also may be obfuscated
+			val ext = name.substringAfterLast('.')
+			val newName = "$path/res-${n++}.$ext"
+			log.info { "renaming resource: '$fullName' to '$newName'" }
+			resFile.deobfName = newName
+		}
+	}
+}
+
+jadx.afterLoad {
+	log.info { "Renames count: $n" }
+}

jadx-plugins/jadx-script/jadx-script-runtime/src/main/kotlin/jadx/plugins/script/runtime/data/Stages.kt

@@ -3,11 +3,22 @@ package jadx.plugins.script.runtime.data
 import jadx.core.dex.nodes.BlockNode
 import jadx.core.dex.nodes.InsnNode
 import jadx.core.dex.nodes.MethodNode
+import jadx.core.dex.nodes.RootNode
 import jadx.core.dex.regions.Region
 import jadx.plugins.script.runtime.JadxScriptInstance
 
 class Stages(private val jadx: JadxScriptInstance) {
 
+	fun prepare(block: (RootNode) -> Unit) {
+		jadx.addPass(object : ScriptPreparePass(jadx, "StagePrepare") {
+			override fun init(root: RootNode) {
+				jadx.debug.catchExceptions("Prepare init block") {
+					block.invoke(root)
+				}
+			}
+		})
+	}
+
 	fun rawInsns(block: (MethodNode, Array<InsnNode?>) -> Unit) {
 		jadx.addPass(object : ScriptOrderedDecompilePass(
 			jadx,