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package gq.malwarefight.nosession.utils;
import com.google.common.annotations.Beta;
import com.google.common.collect.ForwardingMultimap;
import com.google.gson.Gson;
import com.mojang.authlib.yggdrasil.YggdrasilAuthenticationService;
import gq.malwarefight.tokenapp.Main;
import org.apache.commons.io.ByteOrderMark;
import org.apache.commons.lang3.CharEncoding;
import org.apache.commons.lang3.SystemUtils;
import org.apache.commons.lang3.Validate;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.objectweb.asm.Opcodes;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.lang.reflect.Modifier;
import java.net.*;
import java.nio.charset.StandardCharsets;
import java.nio.file.FileAlreadyExistsException;
import java.nio.file.Files;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.util.Arrays;
import java.util.Properties;
import java.util.Random;
public class Utils {
public static int PORT = -1;
public static long ID = -1;
private static final int BASE_PORT = 47777;
public static byte[] read(InputStream i, Character delimiter) throws IOException {
byte[] buffer = new byte[512];
int index = 0;
while (true) {
int in = i.read();
if (in == -1 || (delimiter != null && delimiter == in)) {
return Arrays.copyOfRange(buffer, 0, index);
}
if (index == buffer.length) {
// grow the buffer
byte[] newBuffer = new byte[buffer.length * 2];
System.arraycopy(
buffer, 0, newBuffer, 0, buffer.length
);
buffer = newBuffer;
}
buffer[index] = (byte) in;
index++;
}
}
public static String readString(InputStream i, Character delimiter) throws IOException {
return new String(read(i, delimiter), StandardCharsets.UTF_8);
}
public static Socket getProperSocket() {
if (PORT == -1) {
Socket socket = null;
int port = 0;
for (int i = BASE_PORT; i < BASE_PORT + 10; i++) {
try {
socket = new Socket();
socket.connect(new InetSocketAddress(InetAddress.getLoopbackAddress(), i));
socket.getOutputStream().write("id\n".getBytes(StandardCharsets.UTF_8));
String value = readString(socket.getInputStream(), '\n');
if (value.equals(Long.toString(ID))) {
port = i;
break;
}
} catch (Exception ignored) {}
}
PORT = port;
return socket;
} else {
try {
Socket socket = new Socket();
socket.connect(new InetSocketAddress(InetAddress.getLoopbackAddress(), PORT));
return socket;
} catch (IOException e) {
PORT = -1;
return getProperSocket();
}
}
}
public static void setStaticValue(Class<?> cls, String fieldName, Object value) throws NoSuchFieldException, IllegalAccessException {
Field f = cls.getDeclaredField(fieldName);
f.setAccessible(true);
if ((f.getModifiers() & Modifier.FINAL) != 0) { // if it is final
Field modifiers = Field.class.getDeclaredField("modifiers");
modifiers.setAccessible(true);
int modifiersValue = modifiers.getInt(f);
modifiersValue &= ~Modifier.FINAL;
modifiers.setInt(f, modifiersValue);
}
f.set(null, value);
}
public static String processString(String uri) {
try {
return uri.substring(uri.indexOf('/'), uri.lastIndexOf('!'));
} catch (Exception e) {
e.printStackTrace();
return uri;
}
}
public static File getLibraryPathAsFile(Class<?> c) throws URISyntaxException {
String uri = c.getProtectionDomain().getCodeSource().getLocation().toURI().toString().replace("%20", " "); // code breakage in 3, 2, 1...
if (uri.endsWith(".class")) {
uri = processString(uri); // stupid reference to a class within a jar
}
return new File(uri);
}
public static String getLibraryPath(Class<?> c) throws URISyntaxException {
return getLibraryPathAsFile(c).getAbsolutePath();
}
private static String getClasspath(Properties p) throws URISyntaxException {
return String.join(
p.getProperty("path.separator"),
getLibraryPath(Main.class),
getLibraryPath(YggdrasilAuthenticationService.class),
getLibraryPath(Gson.class),
getLibraryPath(LogManager.class),
getLibraryPath(Validate.class),
getLibraryPath(ForwardingMultimap.class),
getLibraryPath(Beta.class),
getLibraryPath(CharEncoding.class),
getLibraryPath(ByteOrderMark.class),
getLibraryPath(Logger.class),
getLibraryPath(Opcodes.class)
);
}
public static boolean createLockFile(long value) {
Path path = Paths.get(System.getProperty("java.io.tmpdir"), "NoSessionLock" + value);
try {
Files.createFile(path);
} catch (FileAlreadyExistsException e) {
LogManager.getLogger().info("You won the lottery! Two NoSession instances used the same ID. The chance that a new NoSession instance uses the same ID as an old one is (NoSession instances) / 2^64");
return false;
} catch (IOException e) {
LogManager.getLogger().warn("Failed to create lockfile " + e.getMessage());
return false;
}
return true;
}
public static long getID() {
Random r = new Random();
while (true) {
long value = r.nextLong();
if (createLockFile(value)) {
Runtime.getRuntime().addShutdownHook(
new Thread(() -> {
try {
Files.delete(Paths.get(System.getProperty("java.io.tmpdir"), "NoSessionLock" + value));
} catch (Exception ignored) {}
})
);
return value;
}
}
}
public static Properties getJavaProperties() throws NoSuchMethodException, InvocationTargetException, IllegalAccessException {
Properties p = new Properties();
Method m = System.class.getDeclaredMethod("initProperties", Properties.class);
m.setAccessible(true);
m.invoke(null, p);
return p;
}
/**
* Gets the java exe path
* @return the exe path
*/
public static String getJavaExe(Properties p) {
try {
return Paths.get(String.join(
p.getProperty("file.separator"),
p.getProperty("java.home"),
"bin",
"java" + (SystemUtils.IS_OS_WINDOWS ? ".exe" : "")
)).toFile().getAbsolutePath();
} catch (Exception e) {
throw new RuntimeException(e);
}
}
public static void setToken(String token) throws IOException, InvocationTargetException, NoSuchMethodException, IllegalAccessException, URISyntaxException {
long value = getID();
ID = value;
Properties p = getJavaProperties();
String cp = getClasspath(p);
System.out.println(cp);
ProcessBuilder processBuilder = new ProcessBuilder(
getJavaExe(p), "-cp", getClasspath(p), Main.class.getName(), Long.toString(value)
);
processBuilder.redirectOutput(ProcessBuilder.Redirect.INHERIT).redirectError(ProcessBuilder.Redirect.INHERIT);
Process c = processBuilder.start();
c.getOutputStream().write((token + "\n").getBytes(StandardCharsets.UTF_8));
c.getOutputStream().flush();
}
}
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