Add local socket address for the connection #484

* add local address to HandshakeData

src/main/java/com/corundumstudio/socketio/HandshakeData.java

@@ -31,6 +31,7 @@ public class HandshakeData implements Serializable {
     private HttpHeaders headers;
     private InetSocketAddress address;
     private Date time = new Date();
+    private InetSocketAddress local;
     private String url;
     private Map<String, List<String>> urlParams;
     private boolean xdomain;
@@ -40,10 +41,15 @@ public class HandshakeData implements Serializable {
     }
 
     public HandshakeData(HttpHeaders headers, Map<String, List<String>> urlParams, InetSocketAddress address, String url, boolean xdomain) {
+        this(headers, urlParams, address, null, url, xdomain);
+    }
+
+    public HandshakeData(HttpHeaders headers, Map<String, List<String>> urlParams, InetSocketAddress address, InetSocketAddress local, String url, boolean xdomain) {
         super();
         this.headers = headers;
         this.urlParams = urlParams;
         this.address = address;
+        this.local = local;
         this.url = url;
         this.xdomain = xdomain;
     }
@@ -57,6 +63,15 @@ public class HandshakeData implements Serializable {
         return address;
     }
 
+    /**
+     * Connection local address
+     *
+     * @return
+     */
+    public InetSocketAddress getLocal() {
+        return local;
+    }
+
     /**
      * Http headers sent during first client request
      *

src/main/java/com/corundumstudio/socketio/handler/AuthorizeHandler.java

@@ -144,6 +144,7 @@ public class AuthorizeHandler extends ChannelInboundHandlerAdapter implements Di
 
         HandshakeData data = new HandshakeData(req.headers(), params,
                                                 (InetSocketAddress)channel.remoteAddress(),
+                                                (InetSocketAddress)channel.localAddress(),
                                                     req.uri(), origin != null && !origin.equalsIgnoreCase("null"));
 
         boolean result = false;