1 files changed, 78 insertions, 0 deletions
diff --git a/src/de/blinkt/openvpn/core/X509Utils.java b/src/de/blinkt/openvpn/core/X509Utils.java
new file mode 100644
index 00000000..e50343f4
--- /dev/null
+++ b/src/de/blinkt/openvpn/core/X509Utils.java
@@ -0,0 +1,78 @@
+package de.blinkt.openvpn.core;
+
+import java.io.ByteArrayInputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.FileReader;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.Reader;
+import java.io.StringReader;
+import java.security.KeyFactory;
+import java.security.KeyPair;
+import java.security.Principal;
+import java.security.cert.Certificate;
+import java.security.cert.CertificateException;
+import java.security.cert.CertificateFactory;
+import java.security.cert.X509Certificate;
+
+import javax.security.auth.x500.X500Principal;
+
+import org.spongycastle.util.io.pem.PemObject;
+import org.spongycastle.util.io.pem.PemReader;
+
+import android.text.TextUtils;
+
+import de.blinkt.openvpn.VpnProfile;
+
+public class X509Utils {
+	public static Certificate getCertificateFromFile(String certfilename) throws FileNotFoundException, CertificateException {
+		CertificateFactory certFact = CertificateFactory.getInstance("X.509");
+
+		InputStream inStream;
+
+		if(certfilename.startsWith(VpnProfile.INLINE_TAG))
+			inStream = new ByteArrayInputStream(certfilename.replace(VpnProfile.INLINE_TAG,"").getBytes());
+		else 
+			inStream = new FileInputStream(certfilename);
+
+		return certFact.generateCertificate(inStream);
+	}
+
+	public static PemObject readPemObjectFromFile (String keyfilename) throws CertificateException, IOException {
+
+		Reader inStream;
+
+		if(keyfilename.startsWith(VpnProfile.INLINE_TAG))
+			inStream = new StringReader(keyfilename.replace(VpnProfile.INLINE_TAG,""));
+		else 
+			inStream = new FileReader(new File(keyfilename));
+
+		PemReader pr = new PemReader(inStream);
+		PemObject r = pr.readPemObject();
+		pr.close();
+		return r;
+	}
+
+
+
+
+	public static String getCertificateFriendlyName (String filename) {
+		if(!TextUtils.isEmpty(filename)) {
+			try {
+				X509Certificate cert = (X509Certificate) getCertificateFromFile(filename);
+				
+				String friendly = cert.getSubjectDN().getName();
+							
+				return friendly;
+
+			} catch (Exception e) {
+				OpenVPN.logError("Could not read certificate" + e.getLocalizedMessage());
+			}
+		}
+		return "Could not read/parse certificate";
+	}
+
+
+}