1 files changed, 132 insertions, 0 deletions
diff --git a/khtml/java/org/kde/kjas/server/KJASBrokenClassFixer.java b/khtml/java/org/kde/kjas/server/KJASBrokenClassFixer.java
new file mode 100644
index 000000000..aab1be4af
--- /dev/null
+++ b/khtml/java/org/kde/kjas/server/KJASBrokenClassFixer.java
@@ -0,0 +1,132 @@
+package org.kde.kjas.server;
+import java.lang.reflect.*;
+import java.net.URLClassLoader;
+import java.net.URL;
+/**
+* wrapper for the javaplugin.jar Broken11ClassFixer.
+* Uses the reflection api to wrap the class <i>sun.plugin.security.Broken11ClassFixer</i>
+* from the javaplugin.jar archive which can be found in the jre/lib directory.
+*/
+public class KJASBrokenClassFixer {
+    private static Class fixerClass = null;
+    private static Method _process;
+    private static Method _getProcessedData;
+    private static Method _getProcessedDataOffset;
+    private static Method _getProcessedDataLength;
+    private static boolean initialized = false;
+    private static final String fixerClassName = "sun.plugin.security.Broken11ClassFixer";
+    private Object fixer = null;
+    private byte [] bytes;
+    private int offset;
+    private int length;
+    
+    /**
+     * creates a new KJASBrokenClassFixer.
+     * If it is the first one to be created, it tries to load the class
+     * <i>sun.plugin.security.Broken11ClassFixer</i> from the jar file
+     * <i>lib/javaplugin.jar</i> in the java jre directory.
+     */
+    public KJASBrokenClassFixer() {
+        init();
+        if (fixerClass != null) { 
+            try {
+                fixer = fixerClass.newInstance();
+            } catch (Throwable e) {
+                e.printStackTrace();
+            }
+        } 
+    }
+
+    /**
+    * loads the class <i>sun.plugin.security.Broken11ClassFixer</i>,
+    * initializes the methods, ...
+    */
+    private synchronized void init() {
+        if (initialized) {
+            return;
+        }
+        try {
+            URL [] urls = { new URL(
+                "file", "", 0,
+                System.getProperty("java.home")
+                + System.getProperty("file.separator")
+                + "lib"
+                + System.getProperty("file.separator")
+                + "javaplugin.jar"), new URL(
+                "file", "", 0,
+                System.getProperty("java.home")
+                + System.getProperty("file.separator")
+                + "lib"
+                + System.getProperty("file.separator")
+                + "plugin.jar") 
+            };
+            URLClassLoader loader = new URLClassLoader(urls);
+            fixerClass = Class.forName(fixerClassName, true, loader);
+            Main.debug("Loaded " + fixerClass);
+            final Class [] parameterTypes = {
+                (new byte[1]).getClass(), 
+                Integer.TYPE, 
+                Integer.TYPE
+            };
+            final Class [] noParameter = new Class[0]; 
+            _process = fixerClass.getMethod("process", parameterTypes);  
+            _getProcessedData = fixerClass.getMethod("getProcessedData", noParameter);
+            _getProcessedDataOffset = fixerClass.getMethod("getProcessedDataOffset", noParameter);
+            _getProcessedDataLength = fixerClass.getMethod("getProcessedDataLength", noParameter);
+        } catch (Throwable e) {
+            e.printStackTrace();
+        } finally {
+            initialized = true;
+        }
+    }
+    /**
+    * scan the broken bytes and create new ones.
+    * If the wrapped class could not be loaded or
+    * no instance of Broken11ClassFixer could be instantiated,
+    * this is a noop and later calls to getProcessedData() etc.
+    * will return the original data passed as arguments in this
+    * call.
+    */ 
+    public boolean process(byte [] b, int off, int len) {        
+        if (fixer != null) {
+            try { 
+                Object [] args = new Object[3];
+                args[0] = b;
+                args[1] = new Integer(off);
+                args[2] = new Integer(len);
+                Object [] none = new Object[0]; 
+
+                _process.invoke(fixer, args);
+                this.bytes = (byte[])_getProcessedData.invoke(fixer, none);
+                this.offset = ((Integer)_getProcessedDataOffset.invoke(fixer, none)).intValue();
+                this.length = ((Integer)_getProcessedDataLength.invoke(fixer, none)).intValue();
+                return true;
+            }  catch (Throwable e) {
+            }
+        }
+        this.bytes = b;
+        this.offset = off;
+        this.length = len;
+        return false;
+    }
+    
+    /**
+    * get the offset in the processed byte array
+    */
+    public int getProcessedDataOffset() {
+        return offset;
+    }
+    /**
+    * get the length of the processed data
+    */ 
+    public int getProcessedDataLength() {
+        return length;
+    }
+    /**
+    * get the processed (fixed) data
+    */
+    public byte [] getProcessedData() {
+        return bytes;
+    }
+    
+}