static readonly object lockerDir = new object(); //each thread server must access to an exclusive section one at time
public void EntryPoint()
{
try // start both udp and tcp
{
threadUDP = new Thread(EntryUDP);
threadUDP.IsBackground = true;
threadUDP.Start();
threadTCP = new Thread(EntryTCP);
threadTCP.IsBackground = true;
threadTCP.SetApartmentState(ApartmentState.STA);
threadTCP.Start();
}
catch (Exception e)
{
Console.WriteLine(e.ToString());
LANSharingApp.LogFile(e.Message, e.ToString(), e.Source);
// delegate the operation on form to the GUI
MessageFormError mfe = new MessageFormError("UDP or TCP service not available");
LANSharingApp.gui.Invoke((MethodInvoker) delegate() {
mfe.ShowDialog();
});
LANSharingApp.closing = true;
LANSharingApp.serverThread.Join();
LANSharingApp.clearTempFiles();
LANSharingApp.flushTmpDirectory();
Application.Exit();
}
}
private void refresh_Click(object sender, EventArgs e)
{
//call the method to update the list of Online Users
this.Timer_Tick_Tock(sender, e);
MessageFormError mfe = new MessageFormError("Online users list has been refreshed");
mfe.ShowDialog();
}
public static void UpdateUserPreference()
{
try
{
StreamWriter pref;
if (File.Exists(Application.StartupPath + @"\\userPreferences.txt"))
{
File.Delete(Application.StartupPath + @"\\userPreferences.txt");
}
pref = new StreamWriter(Application.StartupPath + @"\\userPreferences.txt");
// Write to the file:
pref.WriteLine("image_flag " + image_flag);
pref.WriteLine("user_image_path " + user_image_path);
pref.WriteLine("user_small_image_path " + user_small_image_path);
pref.WriteLine("sys_Sound_Flag " + sysSoundFlag);
pref.WriteLine("save_profile " + saveProfile);
lock (lockerPathSave)
{
pref.WriteLine("path_save " + pathSave);
}
// Close the stream:
pref.Close();
}
catch (Exception e)
{
Console.WriteLine(e.Message);
LogFile(e.Message, e.ToString(), e.Source);
if (LANSharingApp.sysSoundFlag == 1)
{
audio_error.Play();
}
// delegate the operation on form to the GUI
MessageFormError mfe = new MessageFormError("An exception has occurred in updating userPreference file");
LANSharingApp.gui.Invoke((MethodInvoker) delegate() {
mfe.ShowDialog();
});
closing = true;
LANSharingApp.serverThread.Join();
clearTempFiles();
flushTmpDirectory();
Application.Exit();
}
}
// start to notify wiht UDP packets the online presence
public void EntryNotifyPresence()
{
try
{
while (!LANSharingApp.closing)
{
//check ethernet, need this line to generate exception!!!
string localIP = LANSharingApp.umu.GetLocalIP();
//check if localIP == Admin.getIP
if (!localIP.Equals(LANSharingApp.umu.getAdmin().getIp().ToString()))
{
LANSharingApp.umu.getAdmin().setIP(localIP);
Console.WriteLine("Internet Network Changed: Restart Procedure.");
// delegate the operation on form to the GUI
LANSharingApp.gui.Invoke((MethodInvoker) delegate() {
Application.Restart();
});
}
// send broadcast every 2s, only if ONLINE
if (LANSharingApp.umu.getAdmin().getState().CompareTo("online") == 0)
{
sendBroadcastPacket(LANSharingApp.umu.getAdmin().getString());
//Console.WriteLine("UDP packet Admin: "+ LANSharingApp.umu.getAdmin().getString());
}
// need a timer
Thread.Sleep(2000);
}
}
catch (Exception e)
{
Console.WriteLine(e.ToString());
LANSharingApp.LogFile(e.Message, e.ToString(), e.Source);
LANSharingApp.closing = true;
// delegate the operation on form to the GUI
MessageFormError mfe = new MessageFormError("Error: no lan connection detected, connect to a lan then restart application.");
LANSharingApp.gui.Invoke((MethodInvoker) delegate() {
mfe.ShowDialog();
});
LANSharingApp.serverThread.Join();
LANSharingApp.clearTempFiles();
LANSharingApp.flushTmpDirectory();
Application.Exit();
}
}
public static string[] readUserPreference()
{
try
{
StreamReader sr;
sr = new StreamReader(Application.StartupPath + @"\\userPreferences.txt");
string[] s = new string[6];
string line;
int i = 0;
while ((line = sr.ReadLine()) != null)
{
string[] pref = line.Split(' ');
s[i] = pref[1];
i++;
}
sr.Close();
return(s);
}
catch (Exception e)
{
Console.WriteLine(e.Message);
LogFile(e.Message, e.ToString(), e.Source);
if (LANSharingApp.sysSoundFlag == 1)
{
audio_error.Play();
}
// delegate the operation on form to the GUI
MessageFormError mfe = new MessageFormError("An exception has occurred in reading userPreference file");
LANSharingApp.gui.Invoke((MethodInvoker) delegate() {
mfe.ShowDialog();
});
closing = true;
LANSharingApp.serverThread.Join();
clearTempFiles();
flushTmpDirectory();
Application.Exit();
return(null);
}
}
static void Main(string[] args)
{
if (!Directory.Exists(tmpPath))
{
Directory.CreateDirectory(tmpPath);
}
//check if the app is already running
running = Process.GetProcessesByName(System.IO.Path.GetFileNameWithoutExtension(System.Reflection.Assembly.GetEntryAssembly().Location)).Length > 1;
//Console.WriteLine("ALready running? " + running);
if (running)
{
string selected = null;
if (args.Length == 1) //apertura da context menu
{
selected = args[0];
lock (LANSharingApp.lockerPathSend)
{
pathSend = selected;
}
}
// open the memory-mapped
MemoryMappedFile mmf = MemoryMappedFile.OpenExisting("myMappedFile");
// declare accessor to write on file
MemoryMappedViewAccessor accessor = mmf.CreateViewAccessor();
if (selected != null)
{
//write in the file: Length|Path
//4 offset cause length is on 32 bit
byte[] Buffer = ASCIIEncoding.ASCII.GetBytes(selected);
accessor.Write(0, Buffer.Length);
accessor.Flush();
accessor.WriteArray(4, Buffer, 0, Buffer.Length);
accessor.Flush();
//write path in the memory mapped file
}
else
{
//write in the file: Lenght|Path
accessor.Write(0, 0);
}
//MessageBox.Show("Application already running in background!!!");
closing = false;
}
else
{
if (!closing)// there are no process active
{
// create a memory-mapped file of length 1000 bytes and give it a 'map name' of 'test'
MemoryMappedFile mmf = MemoryMappedFile.CreateNew("myMappedFile", 1000);
string selected = null;
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
if (args.Length == 1) //apertura da context menu
{
selected = args[0];
lock (lockerPathSend)
{
pathSend = selected;
}
}
//manage user preference
if (File.Exists(Application.StartupPath + @"\\userPreferences.txt"))
{
//userPref already exists --> load old user Pref
try
{
string[] s = new string[6];
s = readUserPreference();
if (s[0].Equals("0"))
{
//default user image is used
LANSharingApp.user_image = global::LANSharing.Properties.Resources.user_80;
LANSharingApp.user_small_image = global::LANSharing.Properties.Resources.user_32;
LANSharingApp.image_flag = 0;
LANSharingApp.user_image_path = "no";
LANSharingApp.user_small_image_path = "no";
Console.WriteLine("Default Image");
}
else
{
//LANSharingApp.user_image = Image.FromFile(s[1]);
using (var bmpTemp = new Bitmap(s[1]))
{
LANSharingApp.user_image = new Bitmap(bmpTemp);
}
//LANSharingApp.user_small_image = Image.FromFile(s[2]);
using (var bmpTemp = new Bitmap(s[2]))
{
LANSharingApp.user_small_image = new Bitmap(bmpTemp);
}
LANSharingApp.image_flag = 1;
LANSharingApp.user_image_path = s[1];
LANSharingApp.user_small_image_path = s[2];
//custom user image is used
Console.WriteLine("Custom Image");
}
if (s[3].Equals("1"))
{
//sound on
LANSharingApp.sysSoundFlag = 1;
Console.WriteLine("Sound on");
}
else
{
//sound off
LANSharingApp.sysSoundFlag = 0;
Console.WriteLine("Sound Off");
}
int savePref = int.Parse(s[4]);
saveProfile = savePref;
Console.WriteLine("Save pref: " + saveProfile);
lock (lockerPathSave)
{
LANSharingApp.pathSave = s[5];
}
Console.WriteLine("Path pref: " + pathSave);
}
catch (Exception e)
{
// Let the user know what went wrong.
MessageFormError mfe = new MessageFormError("It's not possible to resume userPreferences: default settings are used");
mfe.ShowDialog();
Console.WriteLine("The userPreference file could not be read");
Console.WriteLine(e.Message);
LogFile(e.Message, e.ToString(), e.Source);
//default user image is used
UpdateUserPreference();
LANSharingApp.user_image = global::LANSharing.Properties.Resources.user_80;
LANSharingApp.user_small_image = global::LANSharing.Properties.Resources.user_32;
LANSharingApp.image_flag = 0;
LANSharingApp.user_image_path = "no";
LANSharingApp.user_small_image_path = "no";
}
}
else
{
//write default preference
WriteUserPreference();
}
// Console.WriteLine("ALready running: opening " + pathSend);
// Application.EnableVisualStyles();
// Application.SetCompatibleTextRenderingDefault(false);
//create userManagerUnit
umu = new UserManagerUnit();
//create a ManualResetEvent used from Server's Threads
// true -> server start work || false -> server stop work
mre = new ManualResetEvent(true);
// create Server istance
// active server
server = new Server();
serverThread = new Thread(server.EntryPoint)
{
Name = "serverThread"
};
serverThread.IsBackground = true;
serverThread.Start();
//create new client
client = new Client();
// create gui istance
gui = new GUI(selected);
//run application
Application.Run(gui);
}
}
}