From a88175ffc95792b88a8724f66db6dda2b8cc32ee Mon Sep 17 00:00:00 2001
From: gegy1000
Date: Tue, 17 Jul 2018 19:14:08 +0200
Subject: ASM Based Class Translator (#1)

* Initial port to ASM

* Package updates

* Annotation + inner class translation

* Fix inner class mapping

* More bytecode translation

* Signature refactoring

* Fix highlighting of mapped names

* Fix parameter name offset

* Fix anonymous class generation

* Fix issues with inner class signature transformation

* Fix bridged method detection

* Fix compile issues

* Resolve all failed tests

* Apply deobfuscated name to transformed classes

* Fix class signatures not being translated

* Fix frame array type translation

* Fix frame array type translation

* Fix array translation in method calls

* Fix method reference and bridge detection

* Fix handling of null deobf mappings

* Parameter translation in interfaces

* Fix enum parameter index offset

* Fix parsed local variable indexing

* Fix stackoverflow on rebuilding method names

* Ignore invalid decompiled variable indices

* basic source jar

* Output directly to file on source export

* Make decompile parallel

* fix incorrect super calls

* Use previous save state to delete old mapping files

* Fix old mappings not properly being removed

* Fix old mappings not properly being removed

* make isMethodProvider public

(cherry picked from commit ebad6a9)

* speed up Deobfuscator's getSources by using a single TranslatingTypeloader and caching the ClassLoaderTypeloader

* ignore .idea project folders

* move SynchronizedTypeLoader to a non-inner

* fix signature remap of inners for now

* index & resolve method/field references for usages view

* Allow reader/writer subclasses to provide the underlying file operations

* fix giving obf classes a name not removing them from the panel

* buffer the ParsedJar class entry inputstream, allow use with a jarinputstream

* make CachingClasspathTypeLoader public

* make CachingClasspathTypeLoader public

* support enum switches with obfuscated SwitchMaps
---
 .../java/cuchaz/enigma/analysis/ParsedJar.java     | 95 ++++++++++++++++++++++
 1 file changed, 95 insertions(+)
 create mode 100644 src/main/java/cuchaz/enigma/analysis/ParsedJar.java

(limited to 'src/main/java/cuchaz/enigma/analysis/ParsedJar.java')

diff --git a/src/main/java/cuchaz/enigma/analysis/ParsedJar.java b/src/main/java/cuchaz/enigma/analysis/ParsedJar.java
new file mode 100644
index 0000000..55f2141
--- /dev/null
+++ b/src/main/java/cuchaz/enigma/analysis/ParsedJar.java
@@ -0,0 +1,95 @@
+/*******************************************************************************
+ * Copyright (c) 2015 Jeff Martin.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the GNU Lesser General Public
+ * License v3.0 which accompanies this distribution, and is available at
+ * http://www.gnu.org/licenses/lgpl.html
+ * <p>
+ * Contributors:
+ * Jeff Martin - initial API and implementation
+ ******************************************************************************/
+
+package cuchaz.enigma.analysis;
+
+import cuchaz.enigma.mapping.entry.ClassEntry;
+import org.objectweb.asm.ClassReader;
+import org.objectweb.asm.tree.ClassNode;
+
+import java.io.BufferedInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.*;
+import java.util.function.Consumer;
+import java.util.jar.JarEntry;
+import java.util.jar.JarFile;
+import java.util.jar.JarInputStream;
+
+public class ParsedJar {
+	private final Map<String, ClassNode> nodes = new LinkedHashMap<>();
+
+	public ParsedJar(JarFile jar) throws IOException {
+		try {
+			// get the jar entries that correspond to classes
+			Enumeration<JarEntry> entries = jar.entries();
+			while (entries.hasMoreElements()) {
+				JarEntry entry = entries.nextElement();
+				// is this a class file?
+				if (entry.getName().endsWith(".class")) {
+					try (InputStream input = new BufferedInputStream(jar.getInputStream(entry))) {
+						// read the ClassNode from the jar
+						ClassReader reader = new ClassReader(input);
+						ClassNode node = new ClassNode();
+						reader.accept(node, 0);
+						String path = entry.getName().substring(0, entry.getName().length() - ".class".length());
+						nodes.put(path, node);
+					}
+				}
+			}
+		} finally {
+			jar.close();
+		}
+	}
+
+	public ParsedJar(JarInputStream jar) throws IOException {
+		try {
+			// get the jar entries that correspond to classes
+			JarEntry entry;
+			while ((entry = jar.getNextJarEntry()) != null) {
+				// is this a class file?
+				if (entry.getName().endsWith(".class")) {
+					// read the ClassNode from the jar
+					ClassReader reader = new ClassReader(jar);
+					ClassNode node = new ClassNode();
+					reader.accept(node, 0);
+					String path = entry.getName().substring(0, entry.getName().length() - ".class".length());
+					nodes.put(path, node);
+					jar.closeEntry();
+				}
+			}
+		} finally {
+			jar.close();
+		}
+	}
+
+	public void visit(Consumer<ClassNode> visitor) {
+		for (ClassNode node : nodes.values()) {
+			visitor.accept(node);
+		}
+	}
+
+	public int getClassCount() {
+		return nodes.size();
+	}
+
+	public List<ClassEntry> getClassEntries() {
+		List<ClassEntry> entries = new ArrayList<>(nodes.size());
+		for (ClassNode node : nodes.values()) {
+			entries.add(new ClassEntry(node.name));
+		}
+		return entries;
+	}
+
+	public ClassNode getClassNode(String name) {
+		return nodes.get(name);
+	}
+}
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