bug fixing on unexpected packet sends

lib/protocol/rdp.js

@@ -73,6 +73,7 @@ function RdpClient(config) {
 	//bind all events
 	var self = this;
 	this.global.on('connect', function () {
+		self.connected = true;
 		self.emit('connect');
 	}).on('session', function () {
 		self.emit('session');
@@ -116,7 +117,6 @@ RdpClient.prototype.connect = function (host, port) {
 	log.info('connect to ' + host + ':' + port);
 	var self = this;
 	this.bufferLayer.socket.connect(port, host, function () {
-		self.connected = true;
 		// in client mode connection start from x224 layer
 		self.x224.connect();
 	});
@@ -142,6 +142,8 @@ RdpClient.prototype.close = function () {
  * @param isPressed {boolean} state of button
  */
 RdpClient.prototype.sendPointerEvent = function (x, y, button, isPressed) {
+	if (!this.connected)
+		return;
 	var event = pdu.data.pointerEvent();
 	if (isPressed) {
 		event.obj.pointerFlags.value |= pdu.data.PointerFlag.PTRFLAGS_DOWN;
@@ -174,6 +176,8 @@ RdpClient.prototype.sendPointerEvent = function (x, y, button, isPressed) {
  * @param extended {boolenan} extended keys
  */
 RdpClient.prototype.sendKeyEventScancode = function (code, isPressed, extended) {
+	if (!this.connected)
+		return;
 	extended = extended || false;
 	var event = pdu.data.scancodeKeyEvent();
 	event.obj.keyCode.value = code;
@@ -182,7 +186,7 @@ RdpClient.prototype.sendKeyEventScancode = function (code, isPressed, extended)
 		event.obj.keyboardFlags.value |= pdu.data.KeyboardFlag.KBDFLAGS_RELEASE;
 	}
 
-    if (!extended) {
+    if (extended) {
     	event.obj.keyboardFlags.value |= pdu.data.KeyboardFlag.KBDFLAGS_EXTENDED;
     }