From a0d836befc62b0c5ada6fa93886114ee7d633a5f Mon Sep 17 00:00:00 2001
From: Brian Hinz <bphinz@users.sourceforge.net>
Date: Fri, 25 Nov 2011 01:12:58 +0000
Subject: [PATCH] add PasswordFile parameter as requested in tracker #3441859

git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@4817 3789f03b-4d11-0410-bbf8-ca57d06f2519
---
 java/com/tigervnc/rfb/VncAuth.java         |  2 +-
 java/com/tigervnc/vncviewer/CConn.java     | 25 ++++++++++++++++++++++
 java/com/tigervnc/vncviewer/VncViewer.java |  5 +++++
 3 files changed, 31 insertions(+), 1 deletion(-)

diff --git a/java/com/tigervnc/rfb/VncAuth.java b/java/com/tigervnc/rfb/VncAuth.java
index cce8d81c..dd84f6af 100644
--- a/java/com/tigervnc/rfb/VncAuth.java
+++ b/java/com/tigervnc/rfb/VncAuth.java
@@ -49,7 +49,7 @@ public class VncAuth {
     des.encrypt(obfuscated,0,obfuscated,0);
   }
 
-  String unobfuscatePasswd(byte[] obfuscated) {
+  public static String unobfuscatePasswd(byte[] obfuscated) {
     DesCipher des = new DesCipher(obfuscationKey);
     des.decrypt(obfuscated,0,obfuscated,0);
     int len;
diff --git a/java/com/tigervnc/vncviewer/CConn.java b/java/com/tigervnc/vncviewer/CConn.java
index f49e3342..136ad7c5 100644
--- a/java/com/tigervnc/vncviewer/CConn.java
+++ b/java/com/tigervnc/vncviewer/CConn.java
@@ -39,6 +39,8 @@ import java.awt.Event;
 
 import java.io.IOException;
 import java.io.InputStream;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
 import java.util.jar.Attributes;
 import java.util.jar.Manifest;
 import javax.swing.*;
@@ -242,7 +244,30 @@ public class CConn extends CConnection
   public final boolean getUserPasswd(StringBuffer user, StringBuffer passwd) {
     String title = ("VNC Authentication ["
                     +csecurity.description() + "]");
+    String passwordFileStr = viewer.passwordFile.getValue();
     PasswdDialog dlg;    
+
+    if (user == null && passwordFileStr != "") {
+      InputStream fp = null;
+      try {
+        fp = new FileInputStream(passwordFileStr);
+      } catch(FileNotFoundException e) {
+        throw new Exception("Opening password file failed");
+      }
+      byte[] obfPwd = new byte[256];
+      try {
+        fp.read(obfPwd);
+        fp.close();
+      } catch(IOException e) {
+        throw new Exception("Failed to read VncPasswd file");
+      }
+      String PlainPasswd =
+        VncAuth.unobfuscatePasswd(obfPwd);
+      passwd.append(PlainPasswd);
+      passwd.setLength(PlainPasswd.length());
+      return true;
+    }
+
     if (user == null) {
       dlg = new PasswdDialog(title, (user == null), (passwd == null));
     } else {
diff --git a/java/com/tigervnc/vncviewer/VncViewer.java b/java/com/tigervnc/vncviewer/VncViewer.java
index 604069c4..97b9427c 100644
--- a/java/com/tigervnc/vncviewer/VncViewer.java
+++ b/java/com/tigervnc/vncviewer/VncViewer.java
@@ -253,6 +253,11 @@ public class VncViewer extends java.applet.Applet implements Runnable
   = new BoolParameter("SendLocalUsername",
                           "Send the local username for SecurityTypes "+
                           "such as Plain rather than prompting", true);
+  StringParameter passwordFile
+  = new StringParameter("PasswordFile",
+                          "Password file for VNC authentication", "");
+  AliasParameter passwd
+  = new AliasParameter("passwd", "Alias for PasswordFile", passwordFile);
   BoolParameter autoSelect
   = new BoolParameter("AutoSelect",
                           "Auto select pixel format and encoding", true);
-- 
2.39.5