JsonObfuscationTable.java
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/*
* This file is part of LiteLoader.
* Copyright (C) 2012-16 Adam Mummery-Smith
* All Rights Reserved.
*/
package com.mumfrey.liteloader.transformers.event.json;
import java.io.Serializable;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import com.google.gson.annotations.SerializedName;
import com.mumfrey.liteloader.core.runtime.Obf;
import com.mumfrey.liteloader.core.runtime.Packets;
/**
* JSON-defined obfuscation table entries used like a registry by the other JSON
* components to look up obfuscation mappings for methods and fields.
*
* @author Adam Mummery-Smith
*/
public class JsonObfuscationTable implements Serializable
{
private static final long serialVersionUID = 1L;
@SerializedName("classes")
private List<JsonObf> jsonClasses;
@SerializedName("methods")
private List<JsonObf> jsonMethods;
@SerializedName("fields")
private List<JsonObf> jsonFields;
// Parsed values
private transient Map<String, Obf> classObfs = new HashMap<String, Obf>();
private transient Map<String, Obf> methodObfs = new HashMap<String, Obf>();
private transient Map<String, Obf> fieldObfs = new HashMap<String, Obf>();
/**
* Parse the entries in each collection to actual Obf objects
*/
public void parse()
{
if (this.jsonClasses != null)
{
for (JsonObf jsonClass : this.jsonClasses)
{
this.classObfs.put(jsonClass.getKey(), jsonClass.parse());
}
}
if (this.jsonMethods != null)
{
for (JsonObf jsonMethod : this.jsonMethods)
{
this.methodObfs.put(jsonMethod.getKey(), jsonMethod.parse());
}
}
if (this.jsonFields != null)
{
for (JsonObf jsonField : this.jsonFields)
{
this.fieldObfs.put(jsonField.getKey(), jsonField.parse());
}
}
}
/**
* Look up a type (a class or primitive type) by token
*/
public Object parseType(String token)
{
token = token.replace(" ", "").trim();
if ("I".equals(token) || "INT".equals(token)) return Integer.TYPE;
if ("J".equals(token) || "LONG".equals(token)) return Long.TYPE;
if ("V".equals(token) || "VOID".equals(token)) return Void.TYPE;
if ("Z".equals(token) || "BOOLEAN".equals(token) || "BOOL".equals(token)) return Boolean.TYPE;
if ("B".equals(token) || "BYTE".equals(token)) return Byte.TYPE;
if ("C".equals(token) || "CHAR".equals(token)) return Character.TYPE;
if ("S".equals(token) || "SHORT".equals(token)) return Short.TYPE;
if ("D".equals(token) || "DOUBLE".equals(token)) return Double.TYPE;
if ("F".equals(token) || "FLOAT".equals(token)) return Float.TYPE;
if ("STRING".equals(token)) return String.class;
if (token.startsWith("L") && token.endsWith(";"))
{
token = token.substring(1, token.length() - 1).replace('/', '.');
}
return this.parseClass(token);
}
/**
* Find an obf entry of any type by name
*
* @param name
*/
public Obf getByName(String name)
{
Obf classObf = this.classObfs.get(name);
if (classObf != null)
{
return classObf;
}
Obf methodObf = this.methodObfs.get(name);
if (methodObf != null)
{
return methodObf;
}
Obf fieldObf = this.fieldObfs.get(name);
if (fieldObf != null)
{
return fieldObf;
}
return null;
}
/**
* @param token
*/
public Obf parseClass(String token)
{
return this.parseObf(token, this.classObfs, false);
}
/**
* @param token
*/
public Obf parseMethod(String token)
{
return this.parseObf(token, this.methodObfs, false);
}
/**
* @param token
*/
public Obf parseField(String token)
{
return this.parseObf(token, this.fieldObfs, false);
}
/**
* @param token
* @param obfs
* @param returnNullOnFailure return null instead of throwing an exception
*/
private Obf parseObf(String token, Map<String, Obf> obfs, boolean returnNullOnFailure)
{
String key = JsonEvents.parseToken(token);
if (key != null)
{
if (obfs.containsKey(key))
{
return obfs.get(key);
}
Obf obf = Obf.getByName(key);
if (obf != null)
{
return obf;
}
Packets packet = Packets.getByName(key);
if (packet != null)
{
return packet;
}
if (returnNullOnFailure)
{
return null;
}
throw new InvalidEventJsonException("The token " + token + " could not be resolved to a type");
}
return new JsonObf.Mapping(token, token, token);
}
}