From 1f6493e319016f8c375b62f2109ee57f5cea828d Mon Sep 17 00:00:00 2001
From: Christian Klinger
Date: Tue, 27 Sep 2016 15:38:39 +0200
Subject: Implemented 'majority vote' to determine the toolbar options.

clients in exam-mode are also displayed differently.
---
 src/server/net/client.cpp | 20 ++++++++++++--------
 1 file changed, 12 insertions(+), 8 deletions(-)

(limited to 'src/server/net/client.cpp')

diff --git a/src/server/net/client.cpp b/src/server/net/client.cpp
index 5086ea1..84c45a9 100644
--- a/src/server/net/client.cpp
+++ b/src/server/net/client.cpp
@@ -150,7 +150,6 @@ void Client::handleMsg()
 		qDebug("Received message with empty ID field. ignored.");
 		return;
 	}
-	//qDebug() << "Received message " << id;
 
 	if (_authed == 2)
 	{
@@ -159,13 +158,16 @@ void Client::handleMsg()
 		{
 			QPixmap pixmap;
 			const QByteArray& rawImage = _fromClient.getFieldBytes("IMG");
-			if (!pixmap.loadFromData(rawImage))
-			{
-				qDebug("Could not decode thumbnail image from client.");
-				return;
+			/* size 0 means the client is in exam-mode and therefore doesn't send any thumbnail */
+			if (rawImage.size() > 0) {
+				if (!pixmap.loadFromData(rawImage))
+				{
+					qDebug("Could not decode thumbnail image from client.");
+					return;
+				}
+				_rawRemoteScreen = QByteArray(rawImage);
+				emit thumbUpdated(this, pixmap, rawImage);
 			}
-			_rawRemoteScreen = QByteArray(rawImage);
-			emit thumbUpdated(this, pixmap, rawImage);
 		}
 		else if (id == _VNCSERVER)
 		{
@@ -225,8 +227,10 @@ void Client::handleMsg()
 			request.accept = true;
 			request.host = _fromClient.getFieldString("HOST");
 			request.name = _fromClient.getFieldString("NAME");
+			request.examMode = _fromClient.getFieldString(_EXAMMODE) == __TRUE;
 			request.ip = _socket->peerAddress().toString();
-			qDebug() << "Login request by " << request.name;
+
+			qDebug() << "Login request by " << request.name << (request.examMode ? "(in exam mode)" : "");
 			// emit event, see if request is accepted
 			emit authenticating(this, &request);
 			if (!request.accept)
-- 
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