Proxy Checker - Multithreading Çoklu Thread Kullanımı

[Huaweis]

Bugün sizlere aslında kendim için yapmış olduğum bir proxy checkeri + source kodunu paylaşacağım. Bunu yaparken multithread ile ilgili gerekli bilgilerin internette eksik olduğunu gördüm ve belki sizin de işinize yarar diye sourcesini paylaşacağım.

source:

using System;
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.IO;
using System.Net;
using System.Threading;
using System.Text.RegularExpressions;

namespace WindowsFormsApplication1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
            Form1.CheckForIllegalCrossThreadCalls = false;
        }
        
        public static int counter = 0;
        Thread[] threads = new Thread[1];
        SemaphoreSlim semaphore = new SemaphoreSlim(initialCount: 1);

        private **** button3_Click(object sender, EventArgs e)
        {
            if (listBox1.Items.Count > 0)
            {
                SaveFileDialog fs = new SaveFileDialog();
                fs.RestoreDirectory = true;
                fs.Filter = "txt files (*.txt)|*.txt";
                fs.FilterIndex = 1;
                fs.ShowDialog();
                if (!(fs.FileName == null))
                {
                    using (StreamWriter sw = new StreamWriter(fs.FileName))
                    {
                        foreach (string line in listBox1.Items)
                        {
                            if (line.StartsWith("Working Proxy: "))
                            {
                                sw.WriteLine(line);
                            }
                        }
                    }

                }
            }
        }

        public **** thread1(string proxy, int gelen,string site)
        {
            try
            {
                semaphore.Wait();
                WebClient web = new WebClient();
                web.Proxy = new WebProxy(proxy);
                
                if (web.DownloadString(site) != "")
                {
                    listBox1.Items.Add("Working Proxy: " + proxy);
                }
                else
                {
                    listBox1.Items.Add("Unresponsive Proxy: " + proxy);
                }

            }
            catch (Exception)
            {
                listBox1.Items.Add("Unresponsive Proxy: " + proxy);

            }
            semaphore.Release();
            return;
        }

        private **** button1_Click_1(object sender, EventArgs e)
        {
            if (textBox1.Text == "" || textBox1.Text == null)
            {
                MessageBox.Show("Bir website linki girin.");
            }
            else
            {
                threads = new Thread[trackBar1.Value];
                semaphore = new SemaphoreSlim(initialCount: trackBar1.Value);
                string textim = textBox1.Text;
                textBox1.Enabled = false;
                button1.Enabled = false;
                trackBar1.Enabled = false;
                OpenFileDialog fo = new OpenFileDialog();
                fo.RestoreDirectory = true;
                fo.Multiselect = false;
                fo.Filter = "txt files (*.txt)|*.txt";
                fo.FilterIndex = 1;
                fo.ShowDialog();
                if (fo.FileName != null)
                {
                    List<string> proxies = new List<string>();
                    using (StreamReader sr = new StreamReader(fo.FileName))
                    {
                        while (sr.Peek() != -1)
                        {
                            string proxyPattern = @"\d{1,3}(\.\d{1,3}){3}:\d{1,5}";
                            Match match = Regex.Match(sr.ReadLine(), proxyPattern);
                            if (match.Success)
                            {
                                proxies.Add(match.Groups[0].Value);
                                ++counter;
                            }
                        }
                    }
                    foreach (string proxy in proxies)
                    {
                        --counter;
                        Thread th = new Thread(new ThreadStart(() => thread1(proxy, counter, textim)));
                        th.Start();
                        //new Thread(thread1).Start(proxy,counter);
                        /*
                    
                        th.Start();
                        if (counter<=0)
                        {
                            //Thread.Sleep(5000);
                            th.Abort();
                            th.Interrupt();
                            MessageBox.Show("Bitti!");
                        }*/
                    }
                }
            }

        }

        private **** button2_Click(object sender, EventArgs e)
        {
            MessageBox.Show(Convert.ToString(trackBar1.Value));
        }

        private **** timer1_Tick(object sender, EventArgs e)
        {
            label2.Text = Convert.ToString(trackBar1.Value);
        }

        private **** Form1_Load(object sender, EventArgs e)
        {
            timer1.Start();
        }
    }
}

Beyler source indirme linki: proxy
Bu da programın indirme linki: proxy

Edit: Beyler bu da virustotal linki https://www.virustotal.com/#/file/57dd83657016817b03a26da5f8861835dc2495608b843b02d65b95ffba0ae2c1/detection
Hayatında ismini bile duymadığım virüs programı 13.5 kb lık programa virüslü demiş.