Proxy Checker using C#

Submitted by donbermoy on Tuesday, July 15, 2014 - 23:08.
In this tutorial, we will create a proxy checker program which will test a list of proxies and report if they respond within a faster time. Now, let's start this tutorial! 1. Let's start with creating a Windows Form Application in C# for this tutorial by following the following steps in Microsoft Visual Studio 2010: Go to File, click New Project, and choose Windows Application. 2. Next, add three buttons for starting the checker, exporting all the reports and exporting the working reports; add also a ListBox that will contain the reports of each proxy. 3. Import these two namespaces. 
  1. using System.IO;
  2. using System.Net;
4. For Button1, put this code below to select a proxy list and check the path isn't nothing/null/empty. 
  1. private void Button1_Click(object sender, EventArgs e)
  2. {
  3. 	OpenFileDialog fo = new OpenFileDialog();
  4. 	fo.RestoreDirectory = true;
  5. 	fo.Multiselect = false;
  6. 	fo.Filter = "txt files (*.txt)|*.txt";
  7. 	fo.FilterIndex = 1;
  8. 	fo.ShowDialog();
  9. 	if (fo.FileName != null)
  10. 	{
  11. 	}
  12. }
Then let's create a new proxies in the String List and add all the lines of the file in to the list in Button1. 
  1. private void Button1_Click(object sender, EventArgs e)
  2. {
  3. 	OpenFileDialog fo = new OpenFileDialog();
  4. 	fo.RestoreDirectory = true;
  5. 	fo.Multiselect = false;
  6. 	fo.Filter = "txt files (*.txt)|*.txt";
  7. 	fo.FilterIndex = 1;
  8. 	fo.ShowDialog();
  9. 	if (fo.FileName != null)
  10. 	{
  11. 		List<string> proxies = new List<string>();
  12. 		using (StreamReader sr = new StreamReader(fo.FileName))
  13. 		{
  14. 			while (sr.Peek != -1)
  15. 			{
  16. 				proxies.Add(sr.ReadLine());
  17. 			}
  18. 		}
  19.  
  20. 	}
  21. }
Now for the checking of script we will create a HTTPWebRequest to Google, set the proxy to the current address and set a timeout for the request of receiving the response to 3000ms/3seconds. If it gets a response it will continue and add the proxy as Working to the list box, otherwise it will catch the error and report it as Unresponsive. 
  1. private void Button1_Click(object sender, EventArgs e)
  2. {
  3. 	OpenFileDialog fo = new OpenFileDialog();
  4. 	fo.RestoreDirectory = true;
  5. 	fo.Multiselect = false;
  6. 	fo.Filter = "txt files (*.txt)|*.txt";
  7. 	fo.FilterIndex = 1;
  8. 	fo.ShowDialog();
  9. 	if (fo.FileName != null)
  10. 	{
  11. 		List<string> proxies = new List<string>();
  12. 		using (StreamReader sr = new StreamReader(fo.FileName))
  13. 		{
  14. 			while (sr.Peek != -1)
  15. 			{
  16. 				proxies.Add(sr.ReadLine());
  17. 			}
  18. 		}
  19.  
  20. 		WebProxy myProxy = default(WebProxy);
  21. 		foreach (string proxy in proxies)
  22. 		{
  23. 			try
  24. 			{
  25. 				myProxy = new WebProxy(proxy);
  26. 				HttpWebRequest r = HttpWebRequest.Create("http://www.google.com");
  27. 				r.UserAgent = "Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/29.0.1547.2 Safari/537.36";
  28. 				r.Timeout = 3000;
  29. 				r.Proxy = myProxy;
  30. 				HttpWebResponse re = r.GetResponse();
  31. 				ListBox1.Items.Add("Working Proxy: " + proxy);
  32. 			}
  33. 			catch (Exception)
  34. 			{
  35. 				ListBox1.Items.Add("Unresponsive Proxy: " + proxy);
  36. 			}
  37. 		}
  38. 	}
  39. }
5. For Button2, put this code below to make a quick export all script. 
  1. private void Button2_Click(object sender, EventArgs e)
  2. {
  3. 	if (ListBox1.Items.Count > 0)
  4. 	{
  5. 		SaveFileDialog fs = new SaveFileDialog();
  6. 		fs.RestoreDirectory = true;
  7. 		fs.Filter = "txt files (*.txt)|*.txt";
  8. 		fs.FilterIndex = 1;
  9. 		fs.ShowDialog();
  10. 		if (!(fs.FileName == null))
  11. 		{
  12. 			using (StreamWriter sw = new StreamWriter(fs.FileName))
  13. 			{
  14. 				foreach (string line in ListBox1.Items)
  15. 				{
  16. 					sw.WriteLine(line);
  17. 				}
  18. 			}
  19.  
  20. 		}
  21. 	}
  22. }
6. Lastly for Button3, put this code below to export working proxies script. 
  1. private void Button3_Click(object sender, EventArgs e)
  2. {
  3. 	if (ListBox1.Items.Count > 0)
  4. 	{
  5. 		SaveFileDialog fs = new SaveFileDialog();
  6. 		fs.RestoreDirectory = true;
  7. 		fs.Filter = "txt files (*.txt)|*.txt";
  8. 		fs.FilterIndex = 1;
  9. 		fs.ShowDialog();
  10. 		if (!(fs.FileName == null))
  11. 		{
  12. 			using (StreamWriter sw = new StreamWriter(fs.FileName))
  13. 			{
  14. 				foreach (string line in ListBox1.Items)
  15. 				{
  16. 					if (line.StartsWith("Working Proxy: "))
  17. 					{
  18. 						sw.WriteLine(line);
  19. 					}
  20. 				}
  21. 			}
  22.  
  23. 		}
  24. 	}
  25. }
Full source code: 
  1. using System.IO;
  2. using System.Net;
  3.  
  4.  
  5.  
  6. public class Form1
  7. {
  8. 	private void Button1_Click(object sender, EventArgs e)
  9. 	{
  10. 		OpenFileDialog fo = new OpenFileDialog();
  11. 		fo.RestoreDirectory = true;
  12. 		fo.Multiselect = false;
  13. 		fo.Filter = "txt files (*.txt)|*.txt";
  14. 		fo.FilterIndex = 1;
  15. 		fo.ShowDialog();
  16. 		if (fo.FileName != null)
  17. 		{
  18. 			List<string> proxies = new List<string>();
  19. 			using (StreamReader sr = new StreamReader(fo.FileName))
  20. 			{
  21. 				while (sr.Peek() != -1)
  22. 				{
  23. 					proxies.Add(sr.ReadLine());
  24. 				}
  25. 			}
  26.  
  27. 			WebProxy myProxy = default(WebProxy);
  28. 			foreach (string proxy in proxies)
  29. 			{
  30. 				try
  31. 				{
  32. 					myProxy = new WebProxy(proxy);
  33. 					HttpWebRequest r = HttpWebRequest.Create("http://www.google.com");
  34. 					r.UserAgent = "Mozilla/5.0 (Windows NT 6.2; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/29.0.1547.2 Safari/537.36";
  35. 					r.Timeout = 3000;
  36. 					r.Proxy = myProxy;
  37. 					HttpWebResponse re = r.GetResponse();
  38. 					ListBox1.Items.Add("Working Proxy: " + proxy);
  39. 				}
  40. 				catch (Exception)
  41. 				{
  42. 					ListBox1.Items.Add("Unresponsive Proxy: " + proxy);
  43. 				}
  44. 			}
  45. 		}
  46. 	}
  47.  
  48. 	private void Button2_Click(object sender, EventArgs e)
  49. 	{
  50. 		if (ListBox1.Items.Count > 0)
  51. 		{
  52. 			SaveFileDialog fs = new SaveFileDialog();
  53. 			fs.RestoreDirectory = true;
  54. 			fs.Filter = "txt files (*.txt)|*.txt";
  55. 			fs.FilterIndex = 1;
  56. 			fs.ShowDialog();
  57. 			if (!(fs.FileName == null))
  58. 			{
  59. 				using (StreamWriter sw = new StreamWriter(fs.FileName))
  60. 				{
  61. 					foreach (string line in ListBox1.Items)
  62. 					{
  63. 						sw.WriteLine(line);
  64. 					}
  65. 				}
  66.  
  67. 			}
  68. 		}
  69. 	}
  70.  
  71. 	private void Button3_Click(object sender, EventArgs e)
  72. 	{
  73. 		if (ListBox1.Items.Count > 0)
  74. 		{
  75. 			SaveFileDialog fs = new SaveFileDialog();
  76. 			fs.RestoreDirectory = true;
  77. 			fs.Filter = "txt files (*.txt)|*.txt";
  78. 			fs.FilterIndex = 1;
  79. 			fs.ShowDialog();
  80. 			if (!(fs.FileName == null))
  81. 			{
  82. 				using (StreamWriter sw = new StreamWriter(fs.FileName))
  83. 				{
  84. 					foreach (string line in ListBox1.Items)
  85. 					{
  86. 						if (line.StartsWith("Working Proxy: "))
  87. 						{
  88. 							sw.WriteLine(line);
  89. 						}
  90. 					}
  91. 				}
  92.  
  93. 			}
  94. 		}
  95. 	}
  96. }
For more inquiries and need programmer for your thesis systems in any kind of programming languages, just contact my number below. Best Regards, Engr. Lyndon Bermoy IT Instructor/System Developer/Android Developer/Freelance Programmer If you have some queries, feel free to contact the number or e-mail below. Mobile: 09488225971 Landline: 826-9296 E-mail:[email protected] Add and Follow me on Facebook: https://www.facebook.com/donzzsky Visit and like my page on Facebook at: https://www.facebook.com/BermzISware

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Submitted byValera (not verified)on Tue, 08/23/2022 - 23:25

Now work

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