From f7a0bb1a348f68314f4a3f9a0525fd26350b9615 Mon Sep 17 00:00:00 2001
From: Kelly Rauchenberger <fefferburbia@gmail.com>
Date: Fri, 22 Aug 2008 20:39:21 +0000
Subject: Update: Added pasword protection to Subversion

Closes #40
---
 .../com/fourisland/instadisc/update/svn/Main.java  | 132 ++++++++++++++++++++-
 1 file changed, 129 insertions(+), 3 deletions(-)

diff --git a/update/plugin/subversion/trunk/src/com/fourisland/instadisc/update/svn/Main.java b/update/plugin/subversion/trunk/src/com/fourisland/instadisc/update/svn/Main.java
index 16e2dd1..45c7485 100644
--- a/update/plugin/subversion/trunk/src/com/fourisland/instadisc/update/svn/Main.java
+++ b/update/plugin/subversion/trunk/src/com/fourisland/instadisc/update/svn/Main.java
@@ -3,9 +3,18 @@ package com.fourisland.instadisc.update.svn;
 import java.io.IOException;
 import java.net.MalformedURLException;
 import java.net.URL;
+import java.security.InvalidAlgorithmParameterException;
+import java.security.InvalidKeyException;
+import java.security.NoSuchAlgorithmException;
 import java.util.Random;
 import java.util.logging.Level;
 import java.util.logging.Logger;
+import javax.crypto.BadPaddingException;
+import javax.crypto.Cipher;
+import javax.crypto.IllegalBlockSizeException;
+import javax.crypto.NoSuchPaddingException;
+import javax.crypto.spec.IvParameterSpec;
+import javax.crypto.spec.SecretKeySpec;
 import org.apache.xmlrpc.XmlRpcException;
 import org.apache.xmlrpc.client.XmlRpcClient;
 import org.apache.xmlrpc.client.XmlRpcClientConfigImpl;
@@ -39,15 +48,54 @@ public class Main {
                 {
                     Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
                 }
-            }
+             }
 
             String message = messBuilder.toString();
             message = message.substring(0, message.indexOf("\n"));
 
+            String path = pathScheme.replace("__REV__", revision);
+
             Random r = new Random();
             int verID = r.nextInt(Integer.MAX_VALUE);
+            int encID = 0;
 
-            String path = pathScheme.replace("__REV__", revision);
+            if (args.length > 7)
+            {
+                encID = r.nextInt(Integer.MAX_VALUE);
+                MD5 md5 = new MD5(padright(args[7], new Integer(encID).toString(), 16).substring(0, 16));
+                String key = md5.hash().substring(0, 16);
+                String iv = reverse(key);
+
+                try
+                {
+                    Cipher cipher = Cipher.getInstance("AES/CBC/NoPadding");
+                    SecretKeySpec keySpec = new SecretKeySpec(key.getBytes(), "AES");
+                    IvParameterSpec ivSpec = new IvParameterSpec(iv.getBytes());
+                    cipher.init(Cipher.ENCRYPT_MODE, keySpec, ivSpec);
+
+                    message = new String(bytesToHex(cipher.doFinal(pad(message.getBytes())))).trim();
+                    author = new String(bytesToHex(cipher.doFinal(pad(author.getBytes())))).trim();
+                    path = new String(bytesToHex(cipher.doFinal(pad(path.getBytes())))).trim();
+                } catch (IllegalBlockSizeException ex)
+                {
+                    Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
+                } catch (BadPaddingException ex)
+                {
+                    Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
+                } catch (InvalidKeyException ex)
+                {
+                    Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
+                } catch (InvalidAlgorithmParameterException ex)
+                {
+                    Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
+                } catch (NoSuchAlgorithmException ex)
+                {
+                    Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
+                } catch (NoSuchPaddingException ex)
+                {
+                    Logger.getLogger(Main.class.getName()).log(Level.SEVERE, null, ex);
+                }
+            }
 
             XmlRpcClientConfigImpl config = new XmlRpcClientConfigImpl();
             config.setServerURL(new URL(centralServer));
@@ -60,7 +108,8 @@ public class Main {
                 message,
                 author,
                 path,
-                "a:0:{}"
+                "a:0:{}",
+                encID
             });
 
             if (resp == 2)
@@ -85,4 +134,81 @@ public class Main {
 
         return args[arg];
     }
+
+    public static String reverse(String in) {
+        String out = "";
+        int i = 0;
+
+        for (i = 0; i < in.length(); i++)
+        {
+            out = in.charAt(i) + out;
+        }
+
+        return out;
+    }
+
+    public static String padright(String in, String pad, int len) {
+        while (in.length() < len)
+        {
+            in += pad;
+        }
+
+        if (in.length() > len)
+        {
+            in = in.substring(0, len);
+        }
+
+        return in;
+    }
+
+    public static String bytesToHex(byte[] buffer) {
+        if (buffer == null)
+        {
+            return null;
+        } else
+        {
+            StringBuilder result = new StringBuilder();
+            for (int i = 0; i < buffer.length; i++)
+            {
+                String hex = Integer.toHexString(Integer.decode(new Byte(buffer[i]).toString()));
+                result.append(padleft(hex.substring(max(hex.length() - 2, 0)), "0", 2));
+            }
+
+            return result.toString();
+        }
+    }
+
+    public static int max(int x, int y) {
+        return (x > y ? x : y);
+    }
+
+    public static String padleft(String in, String pad, int len) {
+        while (in.length() < len)
+        {
+            in = pad + in;
+        }
+
+        if (in.length() > len)
+        {
+            in = in.substring(0, len);
+        }
+
+        return in;
+    }
+    
+    public static byte[] pad(byte[] buffer)
+    {
+        while (buffer.length % 16 != 0)
+        {
+            byte[] tmp = new byte[buffer.length+1];
+            int i=0;
+            for (i=0;i<buffer.length;i++)
+            {
+                tmp[i] = buffer[i];
+            }
+            tmp[buffer.length] = 0;
+            buffer = tmp;
+        }
+        return buffer;
+    }
 }
-- 
cgit 1.4.1