[Development] java: Implement X509 Security types. (Martin Koegler)


git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@4200 3789f03b-4d11-0410-bbf8-ca57d06f2519
diff --git a/java/src/com/tigervnc/vncviewer/X509Tunnel.java b/java/src/com/tigervnc/vncviewer/X509Tunnel.java
new file mode 100644
index 0000000..ddc3f82
--- /dev/null
+++ b/java/src/com/tigervnc/vncviewer/X509Tunnel.java
@@ -0,0 +1,103 @@
+/*
+ * Copyright (C) 2003 Sun Microsystems, Inc.
+ * Copyright (C) 2003-2010 Martin Koegler
+ * Copyright (C) 2006 OCCAM Financial Technology
+ *
+ * This is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This software is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this software; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307,
+ * USA.
+ */
+
+package com.tigervnc.vncviewer;
+
+import java.util.*;
+import java.net.*;
+import javax.net.ssl.*;
+import java.security.*;
+import java.security.cert.*;
+
+public class X509Tunnel extends TLSTunnelBase
+{
+
+  public X509Tunnel (Socket sock_)
+  {
+    super (sock_);
+  }
+
+  protected void setParam (SSLSocket sock)
+  {
+    String[]supported;
+    ArrayList enabled = new ArrayList ();
+
+    supported = sock.getSupportedCipherSuites ();
+
+    for (int i = 0; i < supported.length; i++)
+      if (!supported[i].matches (".*DH_anon.*"))
+	enabled.add (supported[i]);
+
+    sock.setEnabledCipherSuites ((String[])enabled.toArray (new String[0]));
+  }
+
+  protected void initContext (SSLContext sc) throws java.security.
+    GeneralSecurityException
+  {
+    TrustManager[] myTM = new TrustManager[]
+    {
+    new MyX509TrustManager ()};
+    sc.init (null, myTM, null);
+  }
+
+
+  class MyX509TrustManager implements X509TrustManager
+  {
+
+    X509TrustManager tm;
+
+      MyX509TrustManager () throws java.security.GeneralSecurityException
+    {
+      TrustManagerFactory tmf =
+	TrustManagerFactory.getInstance ("SunX509", "SunJSSE");
+      KeyStore ks = KeyStore.getInstance ("JKS");
+        tmf.init (ks);
+        tm = (X509TrustManager) tmf.getTrustManagers ()[0];
+    }
+    public void checkClientTrusted (X509Certificate[]chain,
+				    String authType) throws
+      CertificateException
+    {
+      tm.checkClientTrusted (chain, authType);
+    }
+
+    public void checkServerTrusted (X509Certificate[]chain,
+				    String authType)
+      throws CertificateException
+    {
+      try
+      {
+	tm.checkServerTrusted (chain, authType);
+      } catch (CertificateException e)
+      {
+	MessageBox m =
+	  new MessageBox (e.toString (), MessageBox.MB_OKAYCANCEL);
+	if (!m.result ())
+	  throw e;
+      }
+    }
+
+    public X509Certificate[] getAcceptedIssuers ()
+    {
+      return tm.getAcceptedIssuers ();
+    }
+  }
+}