getChildren() {
return children;
}
// ------------
// Access stuff
// ------------
public void addAccessFlags(int flags) {
classNode.access |= flags;
}
public void removeAccessFlags(int flags) {
classNode.access &= ~flags;
}
public boolean isPublic() {
return (classNode.access & ACC_PUBLIC) != 0;
}
public boolean isPrivate() {
return (classNode.access & ACC_PRIVATE) != 0;
}
public boolean isProtected() {
return (classNode.access & ACC_PROTECTED) != 0;
}
public boolean isFinal() {
return (classNode.access & ACC_FINAL) != 0;
}
public boolean isSuper() {
return (classNode.access & ACC_SUPER) != 0;
}
public boolean isInterface() {
return (classNode.access & ACC_INTERFACE) != 0;
}
public boolean isAbstract() {
return (classNode.access & ACC_ABSTRACT) != 0;
}
public boolean isSynthetic() {
return (classNode.access & ACC_SYNTHETIC) != 0;
}
public boolean isAnnotation() {
return (classNode.access & ACC_ANNOTATION) != 0;
}
public boolean isEnum() {
return (classNode.access & ACC_ENUM) != 0;
}
public boolean isModule() {
return (classNode.access & ACC_MODULE) != 0;
}
public boolean isRecord() {
return (classNode.access & ACC_RECORD) != 0;
}
public boolean isDeprecated() {
return (classNode.access & ACC_DEPRECATED) != 0;
}
// -----
// Misc.
// -----
/**
* Adds a {@link MethodNode} to this {@link ClassWrapper}.
*
* @param methodNode {@link MethodNode} to add.
*/
public void addMethod(MethodNode methodNode) {
classNode.methods.add(methodNode);
methods.add(MethodWrapper.from(methodNode, this));
}
/**
* Adds a {@link FieldNode} to this {@link ClassWrapper}.
*
* @param fieldNode {@link FieldNode} to add.
*/
public void addField(FieldNode fieldNode) {
classNode.fields.add(fieldNode);
fields.add(FieldWrapper.from(fieldNode, this));
}
public MethodNode getMethodNode(String name, String desc) {
return classNode.methods.stream().filter(methodNode -> name.equals(methodNode.name) && desc.equals(methodNode.desc)).findAny().orElse(null);
}
public FieldNode getFieldNode(String name, String desc) {
return classNode.fields.stream().filter(fieldNode -> name.equals(fieldNode.name) && desc.equals(fieldNode.desc)).findAny().orElse(null);
}
public boolean containsMethodNode(String name, String desc) {
return classNode.methods.stream().anyMatch(methodNode -> name.equals(methodNode.name) && desc.equals(methodNode.desc));
}
public boolean containsFieldNode(String name, String desc) {
return classNode.fields.stream().anyMatch(fieldNode -> name.equals(fieldNode.name) && desc.equals(fieldNode.desc));
}
public String generateNextAllowedMethodName(Dictionary dictionary, String desc) {
String name = dictionary.next();
while (containsMethodNode(name, desc)) {
name = dictionary.next();
}
return name;
}
public String generateNextAllowedFieldName(Dictionary dictionary, String desc) {
String name = dictionary.next();
while (containsFieldNode(name, desc)) {
name = dictionary.next();
}
return name;
}
/**
* Returns true if the class allows dynamic constants (Java 11 and above).
*/
public boolean allowsConstDy() {
return (classNode.version >= V11) && (classNode.version != V1_1);
}
/**
* Returns true if this class allows invokedynamic instructions (Java 7 and above).
*/
public boolean allowsIndy() {
return (classNode.version >= V1_7) && (classNode.version != V1_1);
}
/**
* Returns true if this class allows JSR and RET instructions (Java 5 and below).
*/
public boolean allowsJsr() {
return (classNode.version <= V1_5) || (classNode.version == V1_1);
}
public boolean hasVisibleAnnotations() {
return classNode.visibleAnnotations != null && classNode.visibleAnnotations.size() > 0;
}
/**
* Returns the count of the constant pool of the classfile this {@link ClassWrapper} represents.
*
* This is done by writing the class bytes via {@link ClassWriter} with flags set to 0. The constant pool count is
* then manually constructed by directly accessing the relevant offsets. This is computationally expensive and should
* be done sparingly
*/
public int computePoolCount() {
// Hopefully setting flags to 0 doesn't affect CP count
// If it does then pepega
var writer = new ClassWriter(0);
utf8Consts.forEach(writer::newUTF8);
classNode.accept(writer);
// Grab byte array
var bytes = writer.toByteArray();
// Construct unsigned short
// todo: check to make sure this isn't broken
return ((bytes[CP_COUNT_OFFSET] & 0xFF) << 8) | (bytes[CP_COUNT_OFFSET + 1] & 0xFF);
}
public void addUtf8Const(String s) {
utf8Consts.add(s);
}
/**
* Converts the class this {@link ClassWrapper} represents into a byte array.
*/
public byte[] toByteArray() {
var attemptMaxs = Radon.getInstance().config.attemptComputeMaxs;
ClassWriter classWriter = new RadonClassWriter(ClassWriter.COMPUTE_FRAMES);
try {
// Write all non-essential (manually made) entries first
utf8Consts.forEach(classWriter::newUTF8);
// Do the rest
classNode.accept(classWriter);
return classWriter.toByteArray();
} catch (Throwable t) {
if (attemptMaxs) {
RadonLogger.warn(String.format("Error writing class %s. Skipping frames (might cause runtime errors).", classNode.name + ".class"));
t.printStackTrace(System.out);
classWriter = new ClassWriter(ClassWriter.COMPUTE_MAXS);
// Write all non-essential (manually inserted) utf8 entries first
utf8Consts.forEach(classWriter::newUTF8);
// Do the rest
classNode.accept(classWriter);
return classWriter.toByteArray();
} else {
throw t;
}
}
}
public static ClassWrapper from(ClassReader reader) {
return new ClassWrapper(reader, false);
}
public static ClassWrapper fromLib(ClassReader reader) {
return new ClassWrapper(reader, true);
}
}
================================================
FILE: xyz.itzsomebody.radon/src/main/java/xyz/itzsomebody/radon/utils/asm/FieldWrapper.java
================================================
/*
* Radon - An open-source Java obfuscator
* Copyright (C) 2020 ItzSomebody
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see
*/
package xyz.itzsomebody.radon.utils.asm;
import org.objectweb.asm.Opcodes;
import org.objectweb.asm.tree.FieldNode;
/**
* Wrapper around {@link FieldNode}.
*
* @author itzsomebody
*/
public class FieldWrapper implements Opcodes {
private FieldNode fieldNode;
private final String originalName;
private final String originalType;
private final ClassWrapper owner;
public FieldWrapper(FieldNode fieldNode, ClassWrapper owner) {
this.fieldNode = fieldNode;
this.originalName = fieldNode.name;
this.originalType = fieldNode.desc;
this.owner = owner;
}
// -----------------
// Getters / Setters
// -----------------
public FieldNode getFieldNode() {
return fieldNode;
}
public void setFieldNode(FieldNode fieldNode) {
this.fieldNode = fieldNode;
}
public String getOriginalName() {
return originalName;
}
public String getOriginalType() {
return originalType;
}
public ClassWrapper getOwner() {
return owner;
}
// ------------
// Access stuff
// ------------
public void addAccessFlags(int flags) {
fieldNode.access |= flags;
}
public void removeAccessFlags(int flags) {
fieldNode.access &= ~flags;
}
public boolean isPublic() {
return (ACC_PUBLIC & fieldNode.access) != 0;
}
public boolean isPrivate() {
return (ACC_PRIVATE & fieldNode.access) != 0;
}
public boolean isProtected() {
return (ACC_PROTECTED & fieldNode.access) != 0;
}
public boolean isStatic() {
return (ACC_STATIC & fieldNode.access) != 0;
}
public boolean isFinal() {
return (ACC_FINAL & fieldNode.access) != 0;
}
public boolean isVolatile() {
return (ACC_PUBLIC & fieldNode.access) != 0;
}
public boolean isTransient() {
return (ACC_PUBLIC & fieldNode.access) != 0;
}
public boolean isSynthetic() {
return (ACC_SYNTHETIC & fieldNode.access) != 0;
}
public boolean isDeprecated() {
return (ACC_DEPRECATED & fieldNode.access) != 0;
}
// -----
// Misc.
// -----
public static FieldWrapper from(FieldNode FieldNode, ClassWrapper owner) {
return new FieldWrapper(FieldNode, owner);
}
public boolean hasVisibleAnnotations() {
return fieldNode.visibleAnnotations != null && fieldNode.visibleAnnotations.size() > 0;
}
}
================================================
FILE: xyz.itzsomebody.radon/src/main/java/xyz/itzsomebody/radon/utils/asm/FieldWrappers.java
================================================
/*
* Radon - An open-source Java obfuscator
* Copyright (C) 2020 ItzSomebody
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see
*/
package xyz.itzsomebody.radon.utils.asm;
import java.util.ArrayList;
import java.util.List;
public class FieldWrappers {
public static List from(ClassWrapper classWrapper) {
var classNode = classWrapper.getClassNode();
var fieldWrappers = new ArrayList();
classNode.fields.forEach(fieldNode -> fieldWrappers.add(FieldWrapper.from(fieldNode, classWrapper)));
return fieldWrappers;
}
}
================================================
FILE: xyz.itzsomebody.radon/src/main/java/xyz/itzsomebody/radon/utils/asm/MethodWrapper.java
================================================
/*
* Radon - An open-source Java obfuscator
* Copyright (C) 2020 ItzSomebody
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see
*/
package xyz.itzsomebody.radon.utils.asm;
import org.objectweb.asm.Opcodes;
import org.objectweb.asm.commons.CodeSizeEvaluator;
import org.objectweb.asm.tree.MethodNode;
/**
* Wrapper around {@link MethodNode}.
*
* @author itzsomebody
*/
public class MethodWrapper implements Opcodes {
/*
* From https://docs.oracle.com/javase/specs/jvms/se11/html/jvms-4.html#jvms-4.7.3
*
* Note that even though the specification lists an unsigned 32-bit integer size for code_length, the verifier gets
* mad if any method has a code_length > 0xFFFF
*/
private static final int MAX_CODE_SIZE = 0xFFFF;
private MethodNode methodNode;
private final String originalName;
private final String originalDescriptor;
private final ClassWrapper owner;
public MethodWrapper(MethodNode methodNode, ClassWrapper owner) {
this.methodNode = methodNode;
this.originalName = methodNode.name;
this.originalDescriptor = methodNode.desc;
this.owner = owner;
}
// -----------------
// Getters / Setters
// -----------------
public MethodNode getMethodNode() {
return methodNode;
}
public void setMethodNode(MethodNode methodNode) {
this.methodNode = methodNode;
}
public String getOriginalName() {
return originalName;
}
public String getOriginalDescriptor() {
return originalDescriptor;
}
public ClassWrapper getOwner() {
return owner;
}
// ------------
// Access stuff
// ------------
public void addAccessFlags(int flags) {
methodNode.access |= flags;
}
public void removeAccessFlags(int flags) {
methodNode.access &= ~flags;
}
public boolean isPublic() {
return (ACC_PUBLIC & methodNode.access) != 0;
}
public boolean isPrivate() {
return (ACC_PRIVATE & methodNode.access) != 0;
}
public boolean isProtected() {
return (ACC_PROTECTED & methodNode.access) != 0;
}
public boolean isStatic() {
return (ACC_STATIC & methodNode.access) != 0;
}
public boolean isFinal() {
return (ACC_FINAL & methodNode.access) != 0;
}
public boolean isSynchronized() {
return (ACC_SYNCHRONIZED & methodNode.access) != 0;
}
public boolean isBridge() {
return (ACC_BRIDGE & methodNode.access) != 0;
}
public boolean isVarargs() {
return (ACC_VARARGS & methodNode.access) != 0;
}
public boolean isNative() {
return (ACC_NATIVE & methodNode.access) != 0;
}
public boolean isAbstract() {
return (ACC_ABSTRACT & methodNode.access) != 0;
}
public boolean isStrict() {
return (ACC_STRICT & methodNode.access) != 0;
}
public boolean isSynthetic() {
return (ACC_SYNTHETIC & methodNode.access) != 0;
}
public boolean isMandated() {
return (ACC_MANDATED & methodNode.access) != 0;
}
public boolean isDeprecated() {
return (ACC_DEPRECATED & methodNode.access) != 0;
}
// -----
// Misc.
// -----
public boolean hasInstructions() {
return methodNode.instructions.size() > 0;
}
public boolean hasVisibleAnnotations() {
return methodNode.visibleAnnotations != null && methodNode.visibleAnnotations.size() > 0;
}
public int getCodeSize() {
CodeSizeEvaluator evaluator = new CodeSizeEvaluator(null);
methodNode.accept(evaluator);
return evaluator.getMaxSize();
}
public int getLeewaySize() {
return MAX_CODE_SIZE - getCodeSize();
}
public int allocateLocalVar(boolean twoWords) {
methodNode.maxLocals += (twoWords ? 2 : 1);
return methodNode.maxLocals - 1;
}
public static MethodWrapper from(MethodNode methodNode, ClassWrapper owner) {
return new MethodWrapper(methodNode, owner);
}
}
================================================
FILE: xyz.itzsomebody.radon/src/main/java/xyz/itzsomebody/radon/utils/asm/MethodWrappers.java
================================================
/*
* Radon - An open-source Java obfuscator
* Copyright (C) 2020 ItzSomebody
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see
*/
package xyz.itzsomebody.radon.utils.asm;
import java.util.ArrayList;
import java.util.List;
public class MethodWrappers {
public static List from(ClassWrapper classWrapper) {
var classNode = classWrapper.getClassNode();
var methodWrappers = new ArrayList();
classNode.methods.forEach(methodNode -> methodWrappers.add(MethodWrapper.from(methodNode, classWrapper)));
return methodWrappers;
}
}
================================================
FILE: xyz.itzsomebody.radon/src/main/java/xyz/itzsomebody/radon/utils/asm/RadonClassWriter.java
================================================
/*
* Radon - An open-source Java obfuscator
* Copyright (C) 2020 ItzSomebody
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see
*/
package xyz.itzsomebody.radon.utils.asm;
import org.objectweb.asm.ClassWriter;
import xyz.itzsomebody.radon.Radon;
import java.util.ArrayDeque;
import java.util.HashSet;
/**
* Custom-implemented version of {@link ClassWriter} which doesn't use the internal JVM classpath when computing
* stackmap frames.
*
* TODO: Perhaps consider creating fully-worked out hierarchies for JVM runtime classes so we don't have to keep checking huge jars
* TODO: Implement shadow classes
*
* @author itzsomebody
*/
public class RadonClassWriter extends ClassWriter {
private static final Radon radon = Radon.getInstance();
public RadonClassWriter(int flags) {
super(flags);
}
@Override
protected String getCommonSuperClass(final String type1, final String type2) {
if ("java/lang/Object".equals(type1) || "java/lang/Object".equals(type2))
return "java/lang/Object";
String first = deriveCommonSuperName(type1, type2);
String second = deriveCommonSuperName(type2, type1);
if (!"java/lang/Object".equals(first)) {
return first;
}
if (!"java/lang/Object".equals(second)) {
return second;
}
return getCommonSuperClass(radon.getClasspathWrapper(type1).getSuperName(), radon.getClasspathWrapper(type2).getSuperName());
}
private String deriveCommonSuperName(final String type1, final String type2) {
ClassWrapper first = radon.getClasspathWrapper(type1);
ClassWrapper second = radon.getClasspathWrapper(type2);
if (isAssignableFrom(type1, type2)) {
return type1;
} else if (isAssignableFrom(type2, type1)) {
return type2;
} else if (first.isInterface() || second.isInterface()) {
return "java/lang/Object";
} else {
String temp;
do {
temp = first.getSuperName();
first = radon.getClasspathWrapper(temp);
} while (!isAssignableFrom(temp, type2));
return temp;
}
}
private boolean isAssignableFrom(String type1, String type2) {
if ("java/lang/Object".equals(type1)) {
return true;
}
if (type1.equals(type2)) {
return true;
}
ClassWrapper first = radon.getClasspathWrapper(type1);
radon.getClasspathWrapper(type2); // Ensure type2 was loaded at some point
var allChildren = new HashSet();
var toProcess = new ArrayDeque();
first.getChildren().forEach(child -> {
toProcess.add(child.getName());
});
while (!toProcess.isEmpty()) {
String next = toProcess.poll();
if (allChildren.add(next)) {
ClassWrapper temp = radon.getClasspathWrapper(next);
temp.getChildren().forEach(child -> {
toProcess.add(child.getName());
});
}
}
return allChildren.contains(type2);
}
}
================================================
FILE: xyz.itzsomebody.radon/src/main/java/xyz/itzsomebody/radon/utils/asm/RadonRemapper.java
================================================
/*
* Radon - An open-source Java obfuscator
* Copyright (C) 2021 ItzSomebody
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see
*/
package xyz.itzsomebody.radon.utils.asm;
import org.objectweb.asm.commons.SimpleRemapper;
import java.util.Map;
public class RadonRemapper extends SimpleRemapper {
public RadonRemapper(Map mappings) {
super(mappings);
}
@Override
public String mapFieldName(String owner, String name, String descriptor) {
String remappedName = map(owner + '.' + name + ' ' + descriptor);
return (remappedName != null) ? remappedName : name;
}
}
================================================
FILE: xyz.itzsomebody.radon/src/main/java/xyz/itzsomebody/radon/utils/asm/ResourceNameRemapper.java
================================================
/*
* Radon - An open-source Java obfuscator
* Copyright (C) 2021 ItzSomebody
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see
*/
package xyz.itzsomebody.radon.utils.asm;
import org.objectweb.asm.ClassVisitor;
import org.objectweb.asm.MethodVisitor;
import org.objectweb.asm.Opcodes;
import java.util.Map;
// Stupid way remapping resource names, but works for the most part
// If you want to do an *actual* job of this, you should use the SourceInterpreter to update strings arguments
// to methods that grab resources by their name
public class ResourceNameRemapper extends ClassVisitor {
private final Map mappings;
private final String internalName;
public ResourceNameRemapper(ClassVisitor visitor, Map mappings, String internalName) {
this(/* latest api */ Opcodes.ASM9, visitor, mappings, internalName);
}
protected ResourceNameRemapper(int api, ClassVisitor visitor, Map mappings, String internalName) {
super(api, visitor);
this.mappings = mappings;
this.internalName = internalName;
}
@Override
public MethodVisitor visitMethod(int access, String name, String descriptor, String signature, String[] exceptions) {
return new ResourceNameMethodRemapper(super.visitMethod(
access,
name,
descriptor,
signature,
exceptions
));
}
class ResourceNameMethodRemapper extends MethodVisitor {
ResourceNameMethodRemapper(MethodVisitor visitor) {
this(/* latest api */ Opcodes.ASM9, visitor);
}
ResourceNameMethodRemapper(int api, MethodVisitor visitor) {
super(api, visitor);
}
@Override
public void visitLdcInsn(Object value) {
if (value instanceof String) {
String strValue = (String) value;
String fullResourcePath;
if (strValue.startsWith("/")) { // JAR root case
fullResourcePath = strValue.substring(1);
} else { // relative path case
int index = internalName.lastIndexOf('/');
if (index == -1) {
fullResourcePath = ""; // Already at root
} else {
fullResourcePath = internalName.substring(0, index + 1) + strValue;
}
}
if (mappings.containsKey(fullResourcePath)) {
super.visitLdcInsn(mappings.get(fullResourcePath));
} else {
super.visitLdcInsn(value);
}
return;
}
super.visitLdcInsn(value);
}
}
}
================================================
FILE: xyz.itzsomebody.radon/src/main/java/xyz/itzsomebody/radon/utils/logging/RadonConsoleHandler.java
================================================
/*
* Radon - An open-source Java obfuscator
* Copyright (C) 2020 ItzSomebody
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see
*/
package xyz.itzsomebody.radon.utils.logging;
import xyz.itzsomebody.radon.RadonConstants;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.logging.Formatter;
import java.util.logging.LogRecord;
import java.util.logging.StreamHandler;
/**
* A {@link StreamHandler} which outputs to stdout ({@link System#out}).
*
* @author itzsomebody
*/
public class RadonConsoleHandler extends StreamHandler {
/**
* Constructs a {@link StreamHandler} which outputs to stdout ({@link System#out}).
*
* The {@link String} pushed into stdout is composed of a timestamp, level, and message.
*/
public RadonConsoleHandler() {
super(System.out, new Formatter() {
@Override
public String format(final LogRecord record) {
var formatStr = "[%s] %s: %s\n";
var dateStr = new SimpleDateFormat(RadonConstants.LOG_TIMESTAMP_FORMAT).format(new Date(record.getMillis()));
var levelName = record.getLevel().getName();
var formattedMsg = formatMessage(record);
return String.format(formatStr, dateStr, levelName, formattedMsg);
}
});
}
}
================================================
FILE: xyz.itzsomebody.radon/src/main/java/xyz/itzsomebody/radon/utils/logging/RadonLogger.java
================================================
/*
* Radon - An open-source Java obfuscator
* Copyright (C) 2020 ItzSomebody
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see
*/
package xyz.itzsomebody.radon.utils.logging;
import xyz.itzsomebody.radon.RadonConstants;
import xyz.itzsomebody.radon.RadonMain;
import java.util.logging.Logger;
/**
* Wrapper around {@link Logger} to push messages into stdout ({@link System#out}). Parent handler inheritance is
* switched off.
*
* @author itzsomebody
*/
public class RadonLogger {
/**
* Static instance of {@link Logger#getAnonymousLogger()}.
*/
private static final Logger LOGGER;
static {
if (RadonConstants.VERBOSE) {
System.out.println("[RadonLogger] Bootstrapping logger");
}
LOGGER = Logger.getLogger("RadonLogger");
if (RadonConstants.VERBOSE) {
System.out.println("[RadonLogger] Created logger instance");
}
LOGGER.setUseParentHandlers(false); // Avoid parent handler inheritance
if (RadonConstants.VERBOSE) {
System.out.println("[RadonLogger] Disabled parent handler inheritance");
}
LOGGER.addHandler(new RadonConsoleHandler());
if (RadonConstants.VERBOSE) {
System.out.println("[RadonLogger] Registered console handler");
}
}
/**
* Pushes provided message into stdout ({@link System#out}) via {@link Logger#info(String)}.
*
* @param msg Message to output into stdout ({@link System#out}).
*/
public static void info(final String msg) {
LOGGER.info(msg);
}
/**
* Pushes provided message into stdout ({@link System#out}) via {@link Logger#warning(String)}.
*
* @param msg Message to output into stdout ({@link System#out}).
*/
public static void warn(final String msg) {
LOGGER.warning(msg);
}
/**
* Pushes provided message into stdout ({@link System#out}) via {@link Logger#severe(String)}.
*
* @param msg Message to output into stdout ({@link System#out}).
*/
public static void severe(final String msg) {
LOGGER.severe(msg);
}
}
================================================
FILE: xyz.itzsomebody.radon/src/main/resources/asm-license.txt
================================================
ASM: a very small and fast Java bytecode manipulation framework
Copyright (c) 2000-2011 INRIA, France Telecom
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================================================
FILE: xyz.itzsomebody.radon/src/main/resources/jackson-license.txt
================================================
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================================================
FILE: xyz.itzsomebody.radon/src/main/resources/radon-license.txt
================================================
GNU GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
Copyright (C) 2007 Free Software Foundation, Inc.
Everyone is permitted to copy and distribute verbatim copies
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================================================
FILE: xyz.itzsomebody.radon/src/test/java/me/itzsomebody/radon/transformers/TransformersTest.java
================================================
package me.itzsomebody.radon.transformers;
import org.junit.Assert;
import org.junit.Test;
import xyz.itzsomebody.radon.exclusions.Exclusion;
import xyz.itzsomebody.radon.transformers.Transformers;
import xyz.itzsomebody.radon.transformers.strings.StringTransformer;
public class TransformersTest {
@Test
public void ensureTransformerExclusionTypeNonNull() throws Exception {
for (var transformerEnum : Transformers.values()) {
var transformerConstructor = transformerEnum.getTransformerClass().getConstructor();
transformerConstructor.setAccessible(true);
var transformerInstance = transformerConstructor.newInstance();
// Often I'm dumb and forget to put an exclusion type
Assert.assertNotNull(transformerInstance.getExclusionType());
}
}
@Test
public void ensureTransformerConfigNameNonNull() throws Exception{
for (var transformerEnum : Transformers.values()) {
var transformerConstructor = transformerEnum.getTransformerClass().getConstructor();
transformerConstructor.setAccessible(true);
var transformerInstance = transformerConstructor.newInstance();
Assert.assertNotNull(transformerInstance.getConfigName());
}
}
@Test
public void ensureTransformerExclusionTypeNameIsSameAsConfigName() throws Exception{
for (var transformerEnum : Transformers.values()) {
var transformerConstructor = transformerEnum.getTransformerClass().getConstructor();
transformerConstructor.setAccessible(true);
var transformerInstance = transformerConstructor.newInstance();
if (transformerInstance instanceof StringTransformer) {
// Skip -- mostly likely no problem here
} else {
Assert.assertEquals(transformerInstance.getConfigName(), transformerInstance.getExclusionType().name().toLowerCase());
}
}
}
}
================================================
FILE: xyz.itzsomebody.radon.template/build.gradle
================================================
/*
* Radon - An open-source Java obfuscator
* Copyright (C) 2021 ItzSomebody
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see
*/
plugins {
id 'java'
}
sourceCompatibility = javaVer
dependencies {
testImplementation junit
}
================================================
FILE: xyz.itzsomebody.radon.template/src/README.md
================================================
# Template
This module contains various template classes to use with ASMifier.
================================================
FILE: xyz.itzsomebody.radon.template/src/main/java/xyz/itzsomebody/radon/templates/string/AESPCBCDecryptor.java
================================================
package xyz.itzsomebody.radon.templates.string;
import java.nio.charset.StandardCharsets;
import java.util.Arrays;
import java.util.Base64;
public class AESPCBCDecryptor {
public static int[][] sbox;
public static int[][] invSbox;
public static int[] rcon; // round constants
public static int[] expandedKey; // expanded key
public static int[][] mcTables; // lookup tables for MixColumns
static {
// SBox
// See https://crypto.stackexchange.com/questions/85670/need-help-understanding-math-behind-rijndael-s-box
// for an explanation of how 3 generates GF[2^8]
sbox = new int[0x10][0x10];
int p = 1;
int q = 1;
do {
p = gfMult(3, p);
q = gfMult(0xF6, q);
int trans = q; // Affine transformation
trans ^= ((q << 1) | (q >>> (8 - 1))) & 0xFF;
trans ^= ((q << 2) | (q >>> (8 - 2))) & 0xFF;
trans ^= ((q << 3) | (q >>> (8 - 3))) & 0xFF;
trans ^= ((q << 4) | (q >>> (8 - 4))) & 0xFF;
sbox[p / 16][p % 16] = (trans ^ 0x63) & 0xFF;
} while (p != 1);
sbox[0][0] = 0x63; // 0 is never invertible so set manually
// InvSBox
invSbox = new int[sbox.length][sbox.length];
for (int row = 0; row < sbox.length; row++) {
for (int col = 0; col < sbox[0].length; col++) {
int b = sbox[row][col];
invSbox[b >> 4][b & 0xF] = (row << 4) | col;
}
}
// Round constants
rcon = new int[10];
for (int i = 0; i < rcon.length; i++) {
if (i == 0) {
rcon[i] = 1;
} else if (rcon[i - 1] < 0x80) {
rcon[i] = 2 * rcon[i - 1];
} else if (rcon[i - 1] >= 0x80) {
rcon[i] = (2 * rcon[i - 1]) ^ 0x11B;
}
}
for (int i = 0; i < rcon.length; i++) {
rcon[i] <<= 24;
}
// Multiplication tables for MixColumns
mcTables = new int[0xF][];
mcTables[0xE] = new int[0x100];
mcTables[0xB] = new int[0x100];
mcTables[0xD] = new int[0x100];
mcTables[0x9] = new int[0x100];
for (int mult = 0; mult < mcTables.length; mult++) {
if (mcTables[mult] != null) {
int[] table = mcTables[mult];
for (int n = 0; n < table.length; n++) {
table[n] = gfMult(mult, n);
}
}
}
}
public static int subWord(int word) {
int b0 = (word >> (8 * 3)) & 0xFF;
int b1 = (word >> (8 * 2)) & 0xFF;
int b2 = (word >> 8) & 0xFF;
int b3 = word & 0xFF;
return (sbox[b0 >> 4][b0 & 0xF] << 8 * 3)
| (sbox[b1 >> 4][b1 & 0xF] << 8 * 2)
| (sbox[b2 >> 4][b2 & 0xF] << 8)
| (sbox[b3 >> 4][b3 & 0xF]);
}
public static void keySchedule(int[] key) {
// AES-128
int R = 11;
expandedKey = new int[4 * R];
for (int i = 0; i < expandedKey.length; i++) {
if (i < key.length) {
expandedKey[i] = key[i];
} else if (i % key.length == 0) {
int b = (expandedKey[i - 1] << 8) | (expandedKey[i - 1] >>> (32 - 8));
expandedKey[i] = expandedKey[i - key.length];
expandedKey[i] ^= subWord(b);
expandedKey[i] ^= rcon[i / key.length - 1];
} else {
expandedKey[i] = expandedKey[i - key.length] ^ expandedKey[i - 1];
}
}
}
public static void addRoundKey(int[][] state, int round) {
for (int row = 0; row < state.length; row++) {
for (int col = 0; col < state[0].length; col++) {
int rkey = expandedKey[round * state[0].length + col];
int xbyte = (rkey >> (8 * (state.length - 1) - 8 * row)) & 0xFF;
state[row][col] ^= xbyte;
}
}
}
public static void invShiftRows(int[][] state) {
for (int offset = 0; offset < state.length; offset++) {
int[] row = state[offset];
int[] shifted = new int[row.length];
for (int i = 0; i < row.length; i++) {
shifted[(i + offset) % 4] = row[i];
}
state[offset] = shifted;
}
}
public static void invSubBytes(int[][] state) {
for (int row = 0; row < state.length; row++) {
for (int col = 0; col < state[row].length; col++) {
int s = state[row][col];
int upper = s >> 4;
int lower = s & 0xF;
state[row][col] = invSbox[upper][lower];
}
}
}
// Multiply in GF[2^8]
public static int gfMult(int mult, int b) {
int result = 0;
for (int i = 0; i < 8; i++) {
if ((mult & 0x1) != 0) {
result ^= b;
}
mult >>= 1;
int mod = 0;
if ((b & 0x80) != 0) {
mod = 0x11B;
}
b = (b << 1) ^ mod;
}
return result;
}
public static void invMixColumns(int[][] state) {
for (int col = 0; col < state[0].length; col++) {
int s1 = mcTables[0xE][state[0][col]] ^ mcTables[0xB][state[1][col]] ^ mcTables[0xD][state[2][col]] ^ mcTables[0x9][state[3][col]];
int s2 = mcTables[0x9][state[0][col]] ^ mcTables[0xE][state[1][col]] ^ mcTables[0xB][state[2][col]] ^ mcTables[0xD][state[3][col]];
int s3 = mcTables[0xD][state[0][col]] ^ mcTables[0x9][state[1][col]] ^ mcTables[0xE][state[2][col]] ^ mcTables[0xB][state[3][col]];
int s4 = mcTables[0xB][state[0][col]] ^ mcTables[0xD][state[1][col]] ^ mcTables[0x9][state[2][col]] ^ mcTables[0xE][state[3][col]];
state[0][col] = s1;
state[1][col] = s2;
state[2][col] = s3;
state[3][col] = s4;
}
}
public static void invCipher(int[][] state) {
int round = 10;
addRoundKey(state, round);
for (round = 9; round > 0; round--) {
invShiftRows(state);
invSubBytes(state);
addRoundKey(state, round);
invMixColumns(state);
}
invSubBytes(state);
invShiftRows(state);
addRoundKey(state, round);
}
public static String decrypt(String input, long[] ivInts) {
// Compute key based on callstack (yes we're doing this meme again)
var callstack = Thread.currentThread().getStackTrace();
int[] key = new int[]{
callstack[1].getClassName().hashCode(),
callstack[1].getMethodName().hashCode(),
callstack[2].getClassName().hashCode(),
callstack[2].getMethodName().hashCode()
};
keySchedule(key);
// Convert IV to correct format
int[] ivBytes = new int[0x10];
for (int i = 0; i < ivInts.length; i++) {
for (int j = 0; j < 8; j++) {
ivBytes[i * 8 + j] = (int) ((ivInts[i] >>> (56 - j * 8)) & 0xFF);
}
}
int[][] iv = create_state(ivBytes);
// Input -> state for InvCipher
int[] cipherText = design(Base64.getDecoder().decode(input));
int[][][] states = new int[cipherText.length / 16][][];
for (int i = 0; i < states.length; i++) {
int[] subarray = Arrays.copyOfRange(cipherText, i * 16, (i + 1) * 16);
states[i] = create_state(subarray);
}
// PCBC decryption alg
int[][] previousBlock1 = copyBlock(states[0]);
invCipher(states[0]);
for (int row = 0; row < states[0].length; row++) {
for (int col = 0; col < states[0][0].length; col++) {
states[0][row][col] ^= iv[row][col];
previousBlock1[row][col] ^= states[0][row][col];
}
}
for (int i = 1; i < states.length; i++) {
int[][] previousBlock2 = copyBlock(states[i]);
invCipher(states[i]);
int[][] state = states[i];
for (int row = 0; row < state.length; row++) {
for (int col = 0; col < state[0].length; col++) {
state[row][col] ^= previousBlock1[row][col];
previousBlock2[row][col] ^= state[row][col];
}
}
previousBlock1 = previousBlock2;
}
// Reconstruct bytes
byte[] processed = new byte[cipherText.length];
for (int i = 0; i < states.length; i++) {
int[] vector = new int[0x10];
for (int col = 0; col < states[0].length; col++) {
for (int row = 0; row < states[0][0].length; row++) {
vector[col * 4 + row] = states[i][row][col];
}
}
System.arraycopy(resign(vector), 0, processed, i * 16, vector.length);
}
// Remove padding
int nPadBytes = processed[processed.length - 1];
byte[] message = new byte[processed.length - nPadBytes];
System.arraycopy(processed, 0, message, 0, message.length);
return new String(message, StandardCharsets.UTF_8);
}
public static int[][] copyBlock(int[][] block) {
int[][] copy = new int[block.length][block[0].length];
for (int row = 0; row < block.length; row++) {
for (int col = 0; col < block[0].length; col++) {
copy[row][col] = block[row][col];
}
}
return copy;
}
public static int[] design(byte[] arr) {
int[] designed = new int[arr.length];
for (int i = 0; i < arr.length; i++) {
designed[i] = arr[i] & 0xFF;
}
return designed;
}
public static byte[] resign(int[] arr) {
byte[] signed = new byte[arr.length];
for (int i = 0; i < arr.length; i++) {
signed[i] = (byte) arr[i];
}
return signed;
}
public static int[][] create_state(int[] bytes) {
int[][] state = new int[4][4];
for (int i = 0; i < bytes.length; i++) {
state[i % 4][i / 4] = bytes[i];
}
return state;
}
}