//konstruktor funkcije koji instancira klasu server i pokreće dvije dretve
//koje obavljaju posao UDP i TCP servera (na klijentu)
public frmDataGrid()
{
InitializeComponent();
Server server = new Server(this);
Thread listeningUDPThread = new Thread(new ThreadStart(server.startUDPServer));
listeningUDPThread.IsBackground = true;
listeningUDPThread.Start();
Thread listeningTCPThread = new Thread(new ThreadStart(server.startTCPServer));
listeningTCPThread.IsBackground = true;
listeningTCPThread.Start();
//ukoliko ne postoji direktorij za datoteke, kreira ga
FileHandling.createFileDirectory();
//uploada datoteke na servis a preko njega u bazu
newFolder.uploadFilesToService();
//instanciranje servisa i dohvaćanje podataka s njega u obliku tablice
serviceWCF.Service1Client client = new serviceWCF.Service1Client();
DataTable table = client.getData(helper.Name);
dgvData.DataSource = table;
client.Close();
dgvDownloads.DataSource = newFolder.fillMyFiles();
createDownDgv();
}
//klik na logout u tsMenu nas odjavljuje sa servisa i brise podatke iz baze
private void logoutToolStripMenuItem_Click(object sender, EventArgs e)
{
if (helper.Name == "")
{
MessageBox.Show("Niste prijavljeni!");
return;
}
try
{
serviceWCF.Service1Client client = new serviceWCF.Service1Client();
if (client.clearUserFiles(helper.Name) == 1)
{
//MessageBox.Show("Logged out!");
helper.Name = "";
tslblSuccessfulLogout.Visible = true;
tslblNoLogout.Visible = false;
}
client.Close();
}
catch
{
MessageBox.Show("Neuspješna odjava.");
}
}
//provjera korisničkog imena prilikom prijave u aplikaciju
//instanciranje servisa i pozivanje metode za provjeru
public int checkUsername()
{
serviceWCF.Service1Client client = new serviceWCF.Service1Client();
if (client.checkUsername(helper.Name) == 1)
{
client.Close();
return 1;
}
else
{
client.Close();
return 0;
}
}
//brisanje datoteka iz baze nakon što čvor napusti mrežu
public void clearFilesFromService()
{
serviceWCF.Service1Client client = new serviceWCF.Service1Client();
client.clearUserFiles(helper.Name);
client.Close();
}
//upload naziva datoteka u bazu preko servisa
public void uploadFilesToService()
{
//brišu se sve stare datoteka koje su na servisu te se dohvaćaju nazivi novih
clearFilesFromService();
getDirectoryFiles();
getFileNames();
//instancira se servis
serviceWCF.Service1Client client = new serviceWCF.Service1Client();
foreach (string filePath in fileList)
{
//spremanje imena datoteke (bez patha u tmp varijablu)
string tmpFileName = Path.GetFileName(filePath);
//dodavanje tmp varijable u popis
fileName.Add(tmpFileName);
//stvaranje informacije o trenutnoj datoteci
FileInfo fileInformation = new FileInfo(filePath);
//dohavaćanje podatka o veličini trenutne datoteke (u bajtovima)
long fileSize = fileInformation.Length / 1024;
//upload podataka u bazu
string hashFromFile = createHashFromFile(filePath);
client.uploadFilesToService(helper.Name, helper.IP, tmpFileName, filePath, fileSize, hashFromFile, helper.portUDP.ToString());
}
client.Close();
}
//pretraga datoteka u bazi
//instanciranje servisa i pozivanje njegove searchFiles metode
private void btnSearchFiles_Click_1(object sender, EventArgs e)
{
if (txtSearch.Text == "")
return;
try
{
//spajanje na servis i provjera unešene vrijednosti preko searchFiles metode
serviceWCF.Service1Client client = new serviceWCF.Service1Client();
DataTable table = client.searchFiles(txtSearch.Text, helper.Name);
if (table != null)
{
dgvData.DataSource = null;
//postavljanje podataka u dataGridView
dgvData.DataSource = table;
}
else
{
//ukoliko je tablica prazna
return;
}
client.Close();
}
catch (Exception exc)
{
MessageBox.Show(exc.ToString());
}
}
// refresh liste datoteka, instanciranje servisa i ponovno dohvaćanje svih datoteka
private void btnGetData_Click(object sender, EventArgs e)
{
dgvData.DataSource = null;
newFolder.uploadFilesToService();
serviceWCF.Service1Client client = new serviceWCF.Service1Client();
DataTable table = client.getData(helper.Name);
dgvData.DataSource = table;
client.Close();
}
//klik na login -> provjera unesenog imena i provjera konekcije s bazom
private void button1_Click(object sender, EventArgs e)
{
bool usernameOK = false;
//ako nije uneseno prazno polje
if (txtUsername.Text != "")
{
helper.Name = txtUsername.Text;
usernameOK = true;
}
else
{
usernameOK = false;
MessageBox.Show("Please enter your username.");
}
string strHostName = "";
try
{
serviceWCF.Service1Client client = new serviceWCF.Service1Client(); //instanciranje WCf servisa
//dobivanje vanjske IP adrese računala
strHostName = System.Net.Dns.GetHostName();
IPHostEntry ipEntry = System.Net.Dns.GetHostEntry(strHostName);
IPAddress[] addr = ipEntry.AddressList;
helper.IP = addr[addr.Length - 2].ToString();
Match result = Regex.Match(helper.IP, @"\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3}");
if (!result.Success)
helper.IP = "127.0.0.1";
//ako je korisničko ime pravilno
if (usernameOK)
{
try
{
//provjera konekcije s servisom
if (client.checkConnection() == 1)
{
FileHandling checkUser = new FileHandling();
//ako ime nije slobodno
if (checkUser.checkUsername() == 1)
{
MessageBox.Show("Ime se koristi.");
helper.Name = "";
}
else
{
//zatvaranje konekcije s servisom i login forme,
//te instanciranje i prikaz forme sa DataGrid-om
client.Close();
this.Close();
frmDataGrid fdg = new frmDataGrid();
fdg.Show();
}
}
}
// ukoliko servis nije dostupan
catch
{
MessageBox.Show("There has been a probem with connecting to server. Please try again.");
helper.Name = "";
}
}
}
//ukoliko servis nije dostupan
catch
{
MessageBox.Show("There has been a probem with connecting to server. Please try again.");
helper.Name = "";
}
}
