Remove ugly switch

lib/server.js

@@ -124,28 +124,15 @@ PeerServer.prototype._configureWS = function(socket, key, id, token) {
     try {
       var message = JSON.parse(data);
 
-      switch (message.type) {
-        case 'LEAVE':
-          // Clean up if a Peer sends a LEAVE.
-          if (!message.dst) {
-            self._removePeer(key, id);
-          }
-          break;
-        // ICE candidates
-        case 'CANDIDATE':
-        // Offer or answer between peers.
-        case 'OFFER':
-        case 'ANSWER':
-          // Use the ID we know to be correct to prevent spoofing.
-          self._handleTransmission(key, {
-            type: message.type,
-            src: id,
-            dst: message.dst,
-            payload: message.payload
-          });
-          break;
-        default:
-          util.prettyError('Message unrecognized');
+      if (['LEAVE', 'CANDIDATE', 'OFFER', 'ANSWER'].indexOf(message.type) !== -1) {
+        self._handleTransmission(key, {
+          type: message.type,
+          src: id,
+          dst: message.dst,
+          payload: message.payload
+        });
+      } else {
+        util.prettyError('Message unrecognized');
       }
     } catch(e) {
       util.log('Invalid message', data);