using System;
using System.Threading;
using System.IO;
using System.Net;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Runtime.InteropServices;
namespace EasyDownloader
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void button2_Click(object sender, EventArgs e)
{
SaveFileDialog SFD = new SaveFileDialog();
SFD.Filter = "All files (*.*)|(*.*)";
SFD.FilterIndex = 1;
SFD.RestoreDirectory = true;
SFD.ShowDialog();
if (SFD.FileName != String.Empty)
{
textBox2.Text = SFD.FileName;
}
}
private void button1_Click(object sender, EventArgs e)
{
try
{
if (textBox1.Text == String.Empty)
{
throw new RemoteFileEmptyException("Pole URL nie może być puste.");
}
if (textBox2.Text == String.Empty)
{
throw new DestinationFileEmptyException("Pole z plikiem docelowym nie może być puste.");
}
textBox1.ReadOnly = true;
string URL = String.Empty;
string DestFile = String.Empty;
URL = textBox1.Text;
DestFile = textBox2.Text;
Console.ForegroundColor = ConsoleColor.White;
Console.WriteLine("URL = " + URL);
Console.WriteLine("DestFile = " + DestFile);
Console.ForegroundColor = ConsoleColor.Red;
getFile(URL, DestFile);
textBox1.ReadOnly = false;
}
catch (RemoteFileEmptyException ex)
{
MessageBox.Show("Pole URL nie może być puste.", "Błąd", MessageBoxButtons.OK, MessageBoxIcon.Error);
Console.WriteLine(ex);
}
catch (DestinationFileEmptyException ex)
{
MessageBox.Show("Pole z plikiem docelowym nie może być puste.", "Błąd", MessageBoxButtons.OK, MessageBoxIcon.Error);
Console.WriteLine(ex);
}
catch (Exception ex)
{
Console.WriteLine(ex);
}
}
private void Form1_Load(object sender, EventArgs e)
{
DialogResult DR = MessageBox.Show("Czy chcesz uruchomić konsolę debugującą?", "Konsola", MessageBoxButtons.YesNo, MessageBoxIcon.Question);
if (DR == DialogResult.Yes)
{
AllocConsole();
}
Console.ForegroundColor = ConsoleColor.Red;
}
private void getFile(string URL, string DestFile)
{
WebClient WC = new WebClient();
Uri uri = new Uri(URL);
try
{
WC.DownloadProgressChanged += new DownloadProgressChangedEventHandler(client_DownloadProgressChanged);
WC.DownloadFileCompleted += new AsyncCompletedEventHandler(client_DownloadFileCompleted);
WC.DownloadFileAsync(uri, DestFile);
button1.Enabled = false;
}
catch (WebException ex)
{
MessageBox.Show("Wystąpił błąd podczas pobierania.\nPowodem może być\n- niepoprawny URL\n- niepoprawny plik docelowy\n- plik nie istnieje na serwerze", "Błąd", MessageBoxButtons.OK, MessageBoxIcon.Error);
Console.WriteLine(ex);
}
catch (Exception ex)
{
Console.WriteLine(ex);
}
}
void client_DownloadProgressChanged(object sender, DownloadProgressChangedEventArgs e)
{
double bytesIn = double.Parse(e.BytesReceived.ToString());
double totalBytes = double.Parse(e.TotalBytesToReceive.ToString());
double percentage = bytesIn / totalBytes * 100;
progressBar1.Value = int.Parse(Math.Truncate(percentage).ToString());
label3.Text = bytesIn + "/" + totalBytes + " - " + Math.Round(percentage) + "% ukończono.";
}
void client_DownloadFileCompleted(object sender, AsyncCompletedEventArgs e)
{
Console.ForegroundColor = ConsoleColor.Green;
Console.WriteLine("Pobieranie zakończone");
Console.ForegroundColor = ConsoleColor.Red;
button1.Enabled = true;
label3.Text = String.Empty;
progressBar1.Value = 0;
MessageBox.Show("Pobieranie ukończone!", "Zakończono", MessageBoxButtons.OK, MessageBoxIcon.Information);
}
[DllImport("kernel32.dll")]
static extern bool AllocConsole();
}
public class DestinationFileEmptyException : Exception
{
public DestinationFileEmptyException()
{
}
public DestinationFileEmptyException(string message) : base(message)
{
}
public DestinationFileEmptyException(string message, Exception inner) : base(message, inner)
{
}
}
public class RemoteFileEmptyException : Exception
{
public RemoteFileEmptyException()
{
}
public RemoteFileEmptyException(string message) : base(message)
{
}
public RemoteFileEmptyException(string message, Exception inner) : base(message, inner)
{
}
}
}
