Fix JDGUI not finding/decompiling inner classes.

Author: Bl3nd

src/main/java/the/bytecode/club/bytecodeviewer/decompilers/impl/JDGUIDecompiler.java

@@ -19,20 +19,26 @@
 package the.bytecode.club.bytecodeviewer.decompilers.impl;
 
 import com.konloch.disklib.DiskReader;
+import org.apache.commons.io.FilenameUtils;
 import org.jd.core.v1.ClassFileToJavaSourceDecompiler;
 import org.objectweb.asm.tree.ClassNode;
+import org.objectweb.asm.tree.InnerClassNode;
+import the.bytecode.club.bytecodeviewer.BytecodeViewer;
 import the.bytecode.club.bytecodeviewer.Constants;
+import the.bytecode.club.bytecodeviewer.api.ASMUtil;
 import the.bytecode.club.bytecodeviewer.api.ExceptionUI;
 import the.bytecode.club.bytecodeviewer.decompilers.AbstractDecompiler;
 import the.bytecode.club.bytecodeviewer.decompilers.jdgui.CommonPreferences;
 import the.bytecode.club.bytecodeviewer.decompilers.jdgui.DirectoryLoader;
 import the.bytecode.club.bytecodeviewer.decompilers.jdgui.JDGUIClassFileUtil;
 import the.bytecode.club.bytecodeviewer.decompilers.jdgui.PlainTextPrinter;
+import the.bytecode.club.bytecodeviewer.resources.ResourceContainer;
 import the.bytecode.club.bytecodeviewer.translation.TranslatedStrings;
 import the.bytecode.club.bytecodeviewer.util.ExceptionUtils;
 import the.bytecode.club.bytecodeviewer.util.TempFile;
 
 import java.io.*;
+import java.util.List;
 
 import static the.bytecode.club.bytecodeviewer.Constants.FS;
 import static the.bytecode.club.bytecodeviewer.Constants.NL;
@@ -53,12 +59,32 @@ public JDGUIDecompiler()
         super("JD-GUI Decompiler", "jdgui");
     }
 
+    private String[] inners;
     @Override
     public String decompileClassNode(ClassNode cn, byte[] bytes)
     {
         TempFile tempFile = null;
         String exception;
 
+        List<InnerClassNode> innerClasses = cn.innerClasses;
+        inners = new String[innerClasses.size()];
+        for (int i = 0; i < innerClasses.size(); i++)
+        {
+            if (innerClasses.get(i).outerName != null && innerClasses.get(i).outerName.equals(cn.name))
+            {
+                inners[i] = innerClasses.get(i).name;
+            }
+            else if (innerClasses.get(i).outerName == null)
+            {
+                String name = innerClasses.get(i).name;
+                name = name.substring(name.lastIndexOf('/') + 1);
+                if (name.contains(cn.name.substring(cn.name.lastIndexOf('/') + 1)))
+                {
+                    inners[i] = innerClasses.get(i).name;
+                }
+            }
+        }
+
         try
         {
             //create the temporary files
@@ -75,9 +101,33 @@ public String decompileClassNode(ClassNode cn, byte[] bytes)
                 fos.write(bytes);
             }
 
+            // create the inner class temp files
+            File innerTempFile;
+            for (ResourceContainer container : BytecodeViewer.resourceContainers.values())
+            {
+                for (String s : container.resourceClasses.keySet())
+                {
+                    for (String innerClassName : inners)
+                    {
+                        if (s.equals(innerClassName))
+                        {
+                            ClassNode cn2 = container.resourceClasses.get(innerClassName);
+                            tempFile.setUniqueName(cn2.name);
+                            innerTempFile = tempFile.createFileFromExtension(false, false, ".class");
+                            try (FileOutputStream fos = new FileOutputStream(innerTempFile))
+                            {
+                                fos.write(ASMUtil.nodeToBytes(cn2));
+                            }
+                        }
+                    }
+                }
+            }
+
             String pathToClass = tempClassFile.getAbsolutePath().replace('/', File.separatorChar).replace('\\', File.separatorChar);
             String directoryPath = JDGUIClassFileUtil.ExtractDirectoryPath(pathToClass);
-            String internalPath = JDGUIClassFileUtil.ExtractInternalPath(directoryPath, pathToClass);
+            String internalPath = FilenameUtils.removeExtension(JDGUIClassFileUtil.ExtractInternalPath(directoryPath,
+                pathToClass));
+
 
             CommonPreferences preferences = new CommonPreferences()
             {

src/main/java/the/bytecode/club/bytecodeviewer/decompilers/jdgui/DirectoryLoader.java

@@ -46,6 +46,9 @@ public DirectoryLoader(File file) throws LoaderException
     @Override
     public byte[] load(String internalPath) throws LoaderException
     {
+        if (!internalPath.endsWith(".class"))
+            internalPath = internalPath + ".class";
+
         File file = new File(this.codebase, internalPath);
 
         try (FileInputStream fis = new FileInputStream(file); BufferedInputStream bis = new BufferedInputStream(fis))
@@ -61,7 +64,7 @@ public byte[] load(String internalPath) throws LoaderException
     @Override
     public boolean canLoad(String internalPath)
     {
-        File file = new File(this.codebase, internalPath);
+        File file = new File(this.codebase, internalPath + ".class");
         return file.exists() && file.isFile();
     }
 }