BCJSSE: Support application-protocol selectors in BC extension API

tls/src/main/java/org/bouncycastle/jsse/BCApplicationProtocolSelector.java

@@ -0,0 +1,8 @@
+package org.bouncycastle.jsse;
+
+import java.util.List;
+
+public interface BCApplicationProtocolSelector<T>
+{
+    String select(T transport, List<String> protocols);
+}

tls/src/main/java/org/bouncycastle/jsse/BCSSLEngine.java

@@ -6,6 +6,10 @@
  */
 public interface BCSSLEngine
 {
+    BCApplicationProtocolSelector<BCSSLEngine> getBCHandshakeApplicationProtocolSelector();
+
+    void setBCHandshakeApplicationProtocolSelector(BCApplicationProtocolSelector<BCSSLEngine> selector);
+
     BCExtendedSSLSession getBCHandshakeSession();
 
     /**

tls/src/main/java/org/bouncycastle/jsse/BCSSLSocket.java

@@ -8,6 +8,10 @@
  */
 public interface BCSSLSocket
 {
+    BCApplicationProtocolSelector<BCSSLSocket> getBCHandshakeApplicationProtocolSelector();
+
+    void setBCHandshakeApplicationProtocolSelector(BCApplicationProtocolSelector<BCSSLSocket> selector);
+
     BCExtendedSSLSession getBCHandshakeSession();
 
     /**

tls/src/main/java/org/bouncycastle/jsse/provider/JsseUtils.java

@@ -192,6 +192,22 @@ public static Vector getProtocolNames(String[] applicationProtocols)
         return protocolNames;
     }
 
+    public static List<String> getProtocolNames(Vector applicationProtocols)
+    {
+        if (null == applicationProtocols || applicationProtocols.isEmpty())
+        {
+            return null;
+        }
+
+        ArrayList<String> protocolNames = new ArrayList<String>(applicationProtocols.size());
+        for (int i = 0; i < applicationProtocols.size(); ++i)
+        {
+            ProtocolName protocolName = (ProtocolName)applicationProtocols.elementAt(i);
+            protocolNames .add(protocolName.getUtf8Decoding());
+        }
+        return protocolNames;
+    }
+
     public static X509Certificate[] getX509CertificateChain(TlsCrypto crypto, Certificate certificateMessage)
     {
         if (certificateMessage == null || certificateMessage.isEmpty())

tls/src/main/java/org/bouncycastle/jsse/provider/ProvSSLParameters.java

@@ -5,8 +5,11 @@
 import java.util.Collections;
 import java.util.List;
 
+import org.bouncycastle.jsse.BCApplicationProtocolSelector;
 import org.bouncycastle.jsse.BCSNIMatcher;
 import org.bouncycastle.jsse.BCSNIServerName;
+import org.bouncycastle.jsse.BCSSLEngine;
+import org.bouncycastle.jsse.BCSSLSocket;
 import org.bouncycastle.jsse.java.security.BCAlgorithmConstraints;
 
 final class ProvSSLParameters
@@ -36,6 +39,8 @@ private static <T> List<T> copyList(Collection<T> list)
     private List<BCSNIMatcher> sniMatchers;
     private List<BCSNIServerName> sniServerNames;
     private String[] applicationProtocols = new String[0];
+    private BCApplicationProtocolSelector<BCSSLEngine> engineAPSelector;
+    private BCApplicationProtocolSelector<BCSSLSocket> socketAPSelector;
 
     ProvSSLParameters(ProvSSLContextSpi context, String[] cipherSuites, String[] protocols)
     {
@@ -56,6 +61,8 @@ ProvSSLParameters copy()
         p.sniMatchers = sniMatchers;
         p.sniServerNames = sniServerNames;
         p.applicationProtocols = applicationProtocols;
+        p.engineAPSelector = engineAPSelector;
+        p.socketAPSelector = socketAPSelector;
         return p;
     }
 
@@ -177,4 +184,24 @@ public void setApplicationProtocols(String[] applicationProtocols)
     {
         this.applicationProtocols = applicationProtocols.clone();
     }
+
+    public BCApplicationProtocolSelector<BCSSLEngine> getEngineAPSelector()
+    {
+        return engineAPSelector;
+    }
+
+    public void setEngineAPSelector(BCApplicationProtocolSelector<BCSSLEngine> engineAPSelector)
+    {
+        this.engineAPSelector = engineAPSelector;
+    }
+
+    public BCApplicationProtocolSelector<BCSSLSocket> getSocketAPSelector()
+    {
+        return socketAPSelector;
+    }
+
+    public void setSocketAPSelector(BCApplicationProtocolSelector<BCSSLSocket> socketAPSelector)
+    {
+        this.socketAPSelector = socketAPSelector;
+    }
 }