From 6d6041f03cd0e70563f12d5332050588ad6858e7 Mon Sep 17 00:00:00 2001
From: Björn Hagemeister
Date: Wed, 16 Apr 2014 18:15:28 +0200
Subject: New feature. Download of tutor-ip-list and automated assingment.
 TODO: Make source url configurable.

---
 src/server/mainwindow/mainwindow.cpp | 45 +++++++++++++++++++++++++-----------
 1 file changed, 31 insertions(+), 14 deletions(-)

(limited to 'src/server/mainwindow/mainwindow.cpp')

diff --git a/src/server/mainwindow/mainwindow.cpp b/src/server/mainwindow/mainwindow.cpp
index 00ac706..b02cef8 100644
--- a/src/server/mainwindow/mainwindow.cpp
+++ b/src/server/mainwindow/mainwindow.cpp
@@ -27,6 +27,7 @@
 #include "../net/client.h"
 #include "../net/discoverylistener.h"
 #include "../../shared/networkmessage.h"
+#include "../net/filedownloader.h"
 // Others
 #include "../../shared/settings.h"
 #include "../util/util.h"
@@ -59,6 +60,10 @@ MainWindow::MainWindow(QWidget* parent) :
 	ui->action_Exit->setStatusTip(tr("Exit"));
 	ui->action_Lock->setStatusTip(tr("Lock or Unlock all Clients"));
 
+	// Initialize FileDownloader.
+	_fileDownloader.connectSlot(this, SLOT(onTutorListDownloaded(QByteArray&)));
+	_fileDownloader.downloadFile(QUrl("http://132.230.8.113/openslx/ips.txt"));
+
 	// Close button in tool bar
 	connect(ui->action_Exit, SIGNAL(triggered()), this, SLOT(onButtonExit()));
 	connect(ui->action_BroadcastScreen, SIGNAL(triggered()), this, SLOT(onButtonStudentToAll()));
@@ -287,6 +292,13 @@ void MainWindow::timerEvent(QTimerEvent* event)
  * Slots
  */
 
+void MainWindow::onTutorListDownloaded(QByteArray& tutorList)
+{
+	// qDebug() << tutorList;
+	QString data = QString::fromUtf8(tutorList.constData(), tutorList.size());
+	_tutorList = data.split(QRegExp("[\r\n]"),QString::SkipEmptyParts);
+	qDebug() << _tutorList;
+}
 void MainWindow::onPlaceFrame(ConnectionFrame* frame)
 {
 	if (_tilesX <= 0 || _tilesY <= 0)
@@ -665,29 +677,35 @@ void MainWindow::onClientAuthenticated(Client* client)
 	connect(client, SIGNAL(vncServerStateChange(Client*)), this, SLOT(onVncServerStateChange(Client*)), Qt::QueuedConnection);
 	connect(client, SIGNAL(vncClientStateChange(Client*, int)), this, SLOT(onVncClientStateChange(Client*, int)), Qt::QueuedConnection);
 	bool hasActiveTutor = false;
-	ConnectionFrame *deadTutor = NULL;
-	bool anyClient = false;
 	ConnectionFrame *existing = NULL;
 	for (QList<ConnectionFrame*>::iterator it(_clientFrames.begin()); it != _clientFrames.end(); ++it)
 	{
 		if ((*it)->computerId() == client->computerId())
 			existing = *it;
-		if ((*it)->client() != NULL)
-			anyClient = true;
 		if ((*it)->isTutor())
 		{
-			if ((*it)->client() == NULL)
-				deadTutor = *it;
-			else
+			if ((*it)->client() != NULL)
 				hasActiveTutor = true;
 		}
 	}
-	if (!anyClient && deadTutor != NULL)
-		deadTutor->setTutor(false);
+
+	bool isTutor = false;
+	if (!hasActiveTutor)
+	{
+		for (int i = 0; i < _tutorList.size(); i++)
+		{
+			// Check if client is possible tutor
+			if (client->computerId()== _tutorList[i])
+			{
+				isTutor = true;
+				break;
+			}
+		}
+	}
+
 	if (existing != NULL)
 	{
-		if (!anyClient && !hasActiveTutor)
-			existing->setTutor(true);
+		existing->setTutor(isTutor);
 		existing->assignClient(client);
 		return;
 	}
@@ -720,9 +738,8 @@ void MainWindow::onClientAuthenticated(Client* client)
 		// Move to any free tile
 		placeFrameInFreeSlot(cf);
 	}
-	// Make first active client tutor
-	if (!anyClient && !hasActiveTutor)
-		cf->setTutor(true);
+	// Set Tutor option
+	cf->setTutor(isTutor);
 	// Assign client instance
 	cf->assignClient(client);
 	// ################
-- 
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