fixed buffer issues with websockets

Author: lwahlmeier

protocol/src/main/java/org/threadly/litesockets/protocols/websocket/WSFrame.java

@@ -17,11 +17,12 @@ public class WSFrame {
   private final int frameLength;
 
   protected WSFrame(final ByteBuffer bb) {
-    frameLength = WSUtils.getFrameLength(bb);
+    ByteBuffer sbb = bb.slice();
+    frameLength = WSUtils.getFrameLength(sbb);
     if(frameLength < 0 || bb.remaining() < frameLength) {
       throw new IllegalStateException("Not enough data to make a WebSocketFrame");
     }
-    this.bb = bb;
+    this.bb = sbb;
   }
 
   /**

protocol/src/main/java/org/threadly/litesockets/protocols/websocket/WSUtils.java

@@ -148,7 +148,7 @@ public static int getFrameLength(final ByteBuffer bb) {
    * @return the size in the first length field.
    */
   static byte getSmallLen(final ByteBuffer bb) {
-    return (byte)(bb.get(1) & WSConstants.WS_SMALL_LENGTH_MASK);            
+    return (byte)(bb.get(bb.position()+1) & WSConstants.WS_SMALL_LENGTH_MASK);            
   }
 
   static int getLengthSize(final ByteBuffer bb) {
@@ -162,6 +162,6 @@ static int getLengthSize(final ByteBuffer bb) {
   }
 
   private static boolean hasMask(final ByteBuffer bb) {
-    return (bb.get(1) & WSConstants.UNSIGN_BYTE_MASK) >> WSConstants.STATIC_SEVEN == 1;
+    return (bb.get(bb.position()+1) & WSConstants.UNSIGN_BYTE_MASK) >> WSConstants.STATIC_SEVEN == 1;
   }
 }