Add SubparserGroups for plugins

When plugins add actions to rmg, these are now separately grouped to
make them distinguishable from the native actions.

pom.xml

@@ -51,7 +51,7 @@
         <dependency>
           <groupId>eu.tneitzel</groupId>
           <artifactId>argparse4j</artifactId>
-          <version>1.1.0</version>
+          <version>1.2.0</version>
         </dependency>
 
         <dependency>

src/eu/tneitzel/rmg/internal/ArgumentHandler.java

@@ -55,6 +55,7 @@ public ArgumentHandler(String[] argv)
     {
         parser = ArgumentParsers.newFor("remote-method-guesser").build();
         parser.description("rmg v" + ArgumentHandler.class.getPackage().getImplementationVersion() + " - a Java RMI Vulnerability Scanner");
+        parser.addArgument("--plugin").help("file system path of a rmg plugin");
 
         ActionContext ctx = Operation.getActionContext();
         Subparsers subParsers = ctx.addSubparsers(parser);

src/eu/tneitzel/rmg/operations/Operation.java

@@ -4,9 +4,11 @@
 
 import eu.tneitzel.argparse4j.global.ActionContext;
 import eu.tneitzel.argparse4j.global.IAction;
+import eu.tneitzel.argparse4j.global.IActionGroup;
 import eu.tneitzel.argparse4j.global.IOption;
 import eu.tneitzel.rmg.internal.ExceptionHandler;
 import eu.tneitzel.rmg.internal.RMGOption;
+import eu.tneitzel.rmg.plugin.PluginSystem;
 
 /**
  * The Operation enum class contains one item for each possible rmg action. An enum item consists out of
@@ -435,6 +437,17 @@ public static ActionContext getActionContext()
         return new ActionContext("action", " ", " ", Operation.values());
     }
 
+    @Override
+    public IActionGroup getGroup()
+    {
+        if (PluginSystem.getPluginActions().length != 0)
+        {
+            return OperationGroup.NATIVE;
+        }
+
+        return null;
+    }
+
     @Override
     public String getName()
     {

src/eu/tneitzel/rmg/operations/OperationGroup.java

@@ -0,0 +1,29 @@
+package eu.tneitzel.rmg.operations;
+
+import eu.tneitzel.argparse4j.global.IActionGroup;
+
+/**
+ * When plugins implement IActionProvider, they can add additional arguments
+ * to rmg. In this case, we use the IActionGroup to distinguish from plugin and
+ * native actions.
+ *
+ * @author Tobias Neitzel (@qtc_de)
+ */
+public enum OperationGroup implements IActionGroup
+{
+    NATIVE("actions:"),
+    PLUGIN("plugin actions:");
+
+    private final String name;
+
+    OperationGroup(String name)
+    {
+        this.name = name;
+    }
+
+    @Override
+    public String getName()
+    {
+        return name;
+    }
+}

src/eu/tneitzel/rmg/plugin/PluginSystem.java

@@ -10,12 +10,14 @@
 import java.util.jar.Manifest;
 
 import eu.tneitzel.argparse4j.global.IAction;
+import eu.tneitzel.argparse4j.inf.SubparserContainer;
 import eu.tneitzel.argparse4j.inf.Subparsers;
 import eu.tneitzel.rmg.exceptions.MalformedPluginException;
 import eu.tneitzel.rmg.internal.ExceptionHandler;
 import eu.tneitzel.rmg.internal.RMGOption;
 import eu.tneitzel.rmg.io.Logger;
 import eu.tneitzel.rmg.operations.Operation;
+import eu.tneitzel.rmg.operations.OperationGroup;
 import eu.tneitzel.rmg.utils.RMGUtils;
 
 /**
@@ -323,7 +325,14 @@ public static void addPluginActions(Subparsers parser)
     {
         for (IAction action : getPluginActions())
         {
-            action.addSuparser(parser);
+            SubparserContainer container = parser;
+
+            if (action.getGroup() == null)
+            {
+                container = parser.getOrCreateSubparserGroup(OperationGroup.PLUGIN.getName());
+            }
+
+            action.addSuparser(container);
         }
     }
 }