1 files changed, 58 insertions, 0 deletions
diff --git a/src/com/isode/stroke/tls/JavaCertificateFactory.java b/src/com/isode/stroke/tls/JavaCertificateFactory.java
new file mode 100644
index 0000000..56a183e
--- /dev/null
+++ b/src/com/isode/stroke/tls/JavaCertificateFactory.java
@@ -0,0 +1,58 @@
+/*  Copyright (c) 2016, Isode Limited, London, England.
+ *  All rights reserved.
+ *
+ *  Acquisition and use of this software and related materials for any
+ *  purpose requires a written license agreement from Isode Limited,
+ *  or a written license from an organisation licensed by Isode Limited
+ *  to grant such a license.
+ *
+ */
+package com.isode.stroke.tls;
+
+import java.io.ByteArrayInputStream;
+import java.io.InputStream;
+import java.security.cert.CertificateException;
+import java.security.cert.X509Certificate;
+import java.util.logging.Logger;
+import java.util.logging.Level;
+
+import com.isode.stroke.base.ByteArray;
+import com.isode.stroke.tls.java.JavaCertificate;
+
+public class JavaCertificateFactory implements CertificateFactory {
+
+    private final Logger logger = Logger.getLogger(this.getClass().getName());
+    
+    private final java.security.cert.CertificateFactory jvmCertFactory;
+
+    public JavaCertificateFactory() {
+        java.security.cert.CertificateFactory temp = null;
+        try {
+            temp = java.security.cert.CertificateFactory.getInstance("X.509");
+        } catch (CertificateException e) {
+            logger.log(Level.WARNING,"Unable to generate X509 certificate factory",e);
+            temp = null;
+        }
+        jvmCertFactory = temp;
+    }
+    
+    @Override
+    public Certificate createCertificateFromDER(ByteArray der) {
+        if (jvmCertFactory == null) {
+            return null;
+        }
+        InputStream derInputStream = new ByteArrayInputStream(der.getData());
+        try {
+            X509Certificate x509Cert = (X509Certificate)jvmCertFactory.generateCertificate(derInputStream);
+            return new JavaCertificate(x509Cert);
+        } catch (CertificateException e) {
+            logger.log(Level.WARNING,"Unable to generate certificate from byte array "+der,e);
+            return null;
+        } catch (ClassCastException e) {
+            // Should not get here as factory should return an x509 certificate
+            logger.log(Level.WARNING,"Unable to generate X509 certificate",e);
+            return null;
+        }
+    }
+
+}