From 4be005617b3b8c3578cca07c5d085d12916f0d1d Mon Sep 17 00:00:00 2001
From: lclc98
Date: Thu, 30 Jun 2016 00:49:21 +1000
Subject: Json format (#2)

* Added new format

* Fixed bug

* Updated Version
---
 .../java/cuchaz/enigma/MainFormatConverter.java    | 121 +++++++++++++++++++++
 1 file changed, 121 insertions(+)
 create mode 100644 src/main/java/cuchaz/enigma/MainFormatConverter.java

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

diff --git a/src/main/java/cuchaz/enigma/MainFormatConverter.java b/src/main/java/cuchaz/enigma/MainFormatConverter.java
new file mode 100644
index 0000000..29e334e
--- /dev/null
+++ b/src/main/java/cuchaz/enigma/MainFormatConverter.java
@@ -0,0 +1,121 @@
+/*******************************************************************************
+ * 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;
+
+import com.google.common.collect.Maps;
+
+import java.io.File;
+import java.io.FileReader;
+import java.io.FileWriter;
+import java.lang.reflect.Field;
+import java.util.Map;
+import java.util.jar.JarFile;
+
+import cuchaz.enigma.analysis.JarClassIterator;
+import cuchaz.enigma.mapping.*;
+import javassist.CtClass;
+import javassist.CtField;
+
+public class MainFormatConverter {
+
+    public static void main(String[] args)
+            throws Exception {
+
+        System.out.println("Getting field types from jar...");
+
+        JarFile jar = new JarFile(System.getProperty("user.home") + "/.minecraft/versions/1.8/1.8.jar");
+        Map<String, Type> fieldTypes = Maps.newHashMap();
+        for (CtClass c : JarClassIterator.classes(jar)) {
+            for (CtField field : c.getDeclaredFields()) {
+                FieldEntry fieldEntry = EntryFactory.getFieldEntry(field);
+                fieldTypes.put(getFieldKey(fieldEntry), moveClasssesOutOfDefaultPackage(fieldEntry.getType()));
+            }
+        }
+
+        System.out.println("Reading mappings...");
+
+        File fileMappings = new File("../Enigma Mappings/1.8.mappings");
+        MappingsReader mappingsReader = new MappingsReader() {
+
+            @Override
+            protected FieldMapping readField(String obf, String deobf, String type) {
+                // assume the void type for now
+                return new FieldMapping(obf, new Type("V"), deobf);
+            }
+        };
+        Mappings mappings = mappingsReader.read(fileMappings);
+
+        System.out.println("Updating field types...");
+
+        for (ClassMapping classMapping : mappings.classes()) {
+            updateFieldsInClass(fieldTypes, classMapping);
+        }
+
+        System.out.println("Saving mappings...");
+
+        //TODO Fix
+//        try (FileWriter writer = new FileWriter(fileMappings)) {
+//            new MappingsWriter().write(writer, mappings);
+//        }
+
+        System.out.println("Done!");
+    }
+
+    private static Type moveClasssesOutOfDefaultPackage(Type type) {
+        return new Type(type, new ClassNameReplacer() {
+            @Override
+            public String replace(String className) {
+                ClassEntry entry = new ClassEntry(className);
+                if (entry.isInDefaultPackage()) {
+                    return Constants.NonePackage + "/" + className;
+                }
+                return null;
+            }
+        });
+    }
+
+    private static void updateFieldsInClass(Map<String, Type> fieldTypes, ClassMapping classMapping)
+            throws Exception {
+
+        // update the fields
+        for (FieldMapping fieldMapping : classMapping.fields()) {
+            setFieldType(fieldTypes, classMapping, fieldMapping);
+        }
+
+        // recurse
+        for (ClassMapping innerClassMapping : classMapping.innerClasses()) {
+            updateFieldsInClass(fieldTypes, innerClassMapping);
+        }
+    }
+
+    private static void setFieldType(Map<String, Type> fieldTypes, ClassMapping classMapping, FieldMapping fieldMapping)
+            throws Exception {
+
+        // get the new type
+        Type newType = fieldTypes.get(getFieldKey(classMapping, fieldMapping));
+        if (newType == null) {
+            throw new Error("Can't find type for field: " + getFieldKey(classMapping, fieldMapping));
+        }
+
+        // hack in the new field type
+        Field field = fieldMapping.getClass().getDeclaredField("m_obfType");
+        field.setAccessible(true);
+        field.set(fieldMapping, newType);
+    }
+
+    private static Object getFieldKey(ClassMapping classMapping, FieldMapping fieldMapping) {
+        return classMapping.getObfSimpleName() + "." + fieldMapping.getObfName();
+    }
+
+    private static String getFieldKey(FieldEntry obfFieldEntry) {
+        return obfFieldEntry.getClassEntry().getSimpleName() + "." + obfFieldEntry.getName();
+    }
+}
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