From 261cc87125314aafe1aa3879a4ea1360673c06a6 Mon Sep 17 00:00:00 2001
From: Graham <gpe@openrs2.dev>
Date: Thu, 29 Aug 2019 09:13:08 +0100
Subject: [PATCH] Add CachePathTransformer

---
 .../transform/CachePathTransformer.java       | 44 +++++++++++++++++++
 .../java/dev/openrs2/deob/Deobfuscator.java   |  2 +
 2 files changed, 46 insertions(+)
 create mode 100644 bundler/src/main/java/dev/openrs2/bundler/transform/CachePathTransformer.java

diff --git a/bundler/src/main/java/dev/openrs2/bundler/transform/CachePathTransformer.java b/bundler/src/main/java/dev/openrs2/bundler/transform/CachePathTransformer.java
new file mode 100644
index 00000000..3303175e
--- /dev/null
+++ b/bundler/src/main/java/dev/openrs2/bundler/transform/CachePathTransformer.java
@@ -0,0 +1,44 @@
+package dev.openrs2.bundler.transform;
+
+import dev.openrs2.asm.classpath.ClassPath;
+import dev.openrs2.asm.transform.Transformer;
+import org.objectweb.asm.Opcodes;
+import org.objectweb.asm.tree.ClassNode;
+import org.objectweb.asm.tree.LdcInsnNode;
+import org.objectweb.asm.tree.MethodNode;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+public final class CachePathTransformer extends Transformer {
+	private static final Logger logger = LoggerFactory.getLogger(CachePathTransformer.class);
+
+	private int paths;
+
+	@Override
+	protected void preTransform(ClassPath classPath) {
+		paths = 0;
+	}
+
+	@Override
+	protected boolean transformCode(ClassNode clazz, MethodNode method) {
+		for (var it = method.instructions.iterator(); it.hasNext(); ) {
+			var insn = it.next();
+			if (insn.getOpcode() != Opcodes.LDC) {
+				continue;
+			}
+
+			var ldc = (LdcInsnNode) insn;
+			if (ldc.cst.equals(".jagex_cache_") || ldc.cst.equals(".file_store_")) {
+				ldc.cst = ".openrs2_cache_";
+				paths++;
+			}
+		}
+
+		return false;
+	}
+
+	@Override
+	protected void postTransform(ClassPath classPath) {
+		logger.info("Updated {} cache paths", paths);
+	}
+}
diff --git a/deob/src/main/java/dev/openrs2/deob/Deobfuscator.java b/deob/src/main/java/dev/openrs2/deob/Deobfuscator.java
index 47a3e703..398a9fe8 100644
--- a/deob/src/main/java/dev/openrs2/deob/Deobfuscator.java
+++ b/deob/src/main/java/dev/openrs2/deob/Deobfuscator.java
@@ -9,6 +9,7 @@ import com.google.common.collect.ImmutableList;
 import dev.openrs2.asm.classpath.ClassPath;
 import dev.openrs2.asm.classpath.Library;
 import dev.openrs2.asm.transform.Transformer;
+import dev.openrs2.bundler.transform.CachePathTransformer;
 import dev.openrs2.bundler.transform.HostCheckTransformer;
 import dev.openrs2.bundler.transform.RightClickTransformer;
 import dev.openrs2.deob.remap.PrefixRemapper;
@@ -32,6 +33,7 @@ public final class Deobfuscator {
 
 	private static final ImmutableList<Transformer> TRANSFORMERS = ImmutableList.of(
 		new OriginalNameTransformer(),
+		new CachePathTransformer(),
 		new HostCheckTransformer(),
 		new RightClickTransformer(),
 		new OpaquePredicateTransformer(),