Enable Proxy Authentication for normal windows application.
- by Lalit
my company's internet works on proxy server with Authentication(i.e. Browser prompts with window for username/password everytime i tried to access any web page).
Now i have some windows application which tries to access internet(like WebPI/Visual Studio 2008 for rss feeds), but as they are unable to popup the the authentication window, they are unable to connect with internet with error:
(407) Proxy Authentication Required
.
Here the exception is VS2008, first time it always fails to load rss feeds on startup page, but when i click on the link, it shows authentication window and everything works fine after that.
my question is: How can i configure normal windows application(through app.config/app.manifest file) accessing web to able to show the authentication window or provide default credentials.
For explore this furthor, i have created one console application on VS2008 which tries to serach something on google and display the result on console. Code:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Net;
using System.IO;
namespace WebAccess.Test
{
class Program
{
static void Main(string[] args)
{
Console.WriteLine("Enter Serach Criteria:");
string criteria = Console.ReadLine();
string baseAddress = "http://www.google.com/search?q=";
string output = "";
try
{
// Create the web request
HttpWebRequest request = WebRequest.Create(baseAddress + criteria) as HttpWebRequest;
// Get response
using (HttpWebResponse response = request.GetResponse() as HttpWebResponse)
{
// Get the response stream
StreamReader reader = new StreamReader(response.GetResponseStream());
// Console application output
output = reader.ReadToEnd();
}
Console.WriteLine("\nResponse : \n\n{0}", output);
}
catch (Exception ex)
{
Console.WriteLine("\nError : \n\n{0}", ex.ToString());
}
}
}
}
When running this, It gives error
Enter Serach Criteria:
Lalit
Error :
System.Net.WebException: The remote server returned an error: (407) Proxy Authen
tication Required.
at System.Net.HttpWebRequest.GetResponse()
at WebAccess.Test.Program.Main(String[] args) in D:\LK\Docs\VS.NET\WebAccess.
Test\WebAccess.Test\Program.cs:line 26
Press any key to continue . . .
